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— DRAFT —
(CONTACT H&K FOR FINAL VERSION)

HECKLER & KOCH, INC.
21480 Pacific Boulevard
Sterling, Virginia 20166-8903
TEL. (703) 450-1900

HECKLER & KOCH
MP5 SUBMACHINE GUN

OPERATOR’S|
MANUAL

— DRAFT — HIO-TD-492 (5/89)
(CONTACT H&K FOR FINAL VERSION) See

SAFETY RULES

Safety Rule # 1 Treat every weapon as if it were loaded.
Safety Rule # 2 Never point a weapon at anything or anybody

that you do not intend to shoot, or in a
direction where an unintentional discharge may
result in damage to property, injury or death.

Safety Rule # 3 Never place your finger into the trigger guard
until you are ready to fire the weapon.

Safety Rule # 4 Be sure of your target and of what’s behind it
before firing! At 25 meters, even a 9mm

projectile can easily penetrate wood or
plasterboard walls or a car door and may
travel more than 1 mile!

Safety Rule # 5 Ensure that all parts of your hands and body

are kept away from the muzzle of the weapon at
all times!

Safety Rule # 6 Always wear eye protection (with side

protection when firing on steel targets) and
ear protection when firing any firearm.

Safety Rule # 7 Clear every weapon before handling it.
CLEAR THE WEAPON!
1. Before handling the weapon, "CLEAR IT"! Do so by:

Make sure fingers are outside of the trigger guard and
the weapon is pointed in a safe direction at all times!

ON SAFE - Rotate the safety/selector lever to the "Safe"
position. (With the safety/selector lever set at the
white box with a white bullet symbol inside or at the
white "S". See illustrations on pages 16 - 18.)

REMOVE MAGAZINE - Depress the magazine release lever or
button and remove the magazine from the magazine well.

COCKING HANDLE - Rotate the ejection port towards the
ground and pull the cocking handle rearward one or more
times to insure the chamber is empty. Watch for a live
round or empty case to be ejected.

Rotate the cocking handle upward slightly and lock it
into the indent in the cocking lever housing to lock the
bolt open.

E. INSPECT CHAMBER - Inspect chamber for the presence of a
live round or empty case.

A. Visually - View chamber through open ejection
port.

B. Physically - Insert index finger through
magazine well and feel for the presence of a
round or cartridge case in the chamber.

Remove any live rounds or empty cases from the chamber or
from within the weapon or magazine before handling the
weapon further.

The H&K MP5 submachine gun is now considered "Clear".

REVIEW THE SAFETY RULES LISTED ABOVE AND ON PAGE 27 BEFORE
HANDLING THE WEAPON FURTHER.

OBEY THE SAFETY RULES LISTED ON PAGE 27 EACH AND EVERY TIME
YOU HANDLE ANY FIREARM.

TABLE OF CONTENTS

Page Number subject (s)
4 Introduction
4 eecvceevcceess DESCription
5 Models and Variants
Tk 15b48n seeks osoeHistory
13 Technical Specifications
15 wecccceceeeeee -NOmenclature
15 Operating Controls and their Use
22 ....2-....2--.--. Advantages of the Weapon System
23 Clearing Procedure
25 cecccccceeceeeeFilling the Magazine
25 Loading procedure
27 wc cccccccceee Safety Rules
28 Firing Procedure
29 coccceccesvceses Immediate Action
30 Operator Disassembly
37 cecceccecceese Operator Reassembly
44 Function Check
45 ccvcccceeeees- Operating Principle
51 Safeties
52 wee e eee eeeeess Operator Cleaning
58 Operator Inspection
S59 wwe eeeeeeees--Correct Locking Piece
60 Lubrication
62 ecccccccvccceee Special Use and Maintenance of H&K Sound
Suppressed Weapons
67 Ammunition
68 ow eeseeeeeeess-Sight Alignment/sight Picture
70 Sight Adjustment
75 secsceceeceeee--Use Of the Multi-purpose Carrying Sling
84 Transitioning to the Back-up Weapon
B5 gw ceneeeeeees-- Covering the Suspect
85 Optimum Firing Position
BB www eeneecceeee -TACtical Reload
90 Storage of the Weapon
90 .wcseeeeeeeeseeeUse Of Optional Accessories
98 Trouble Shooting
203) sewseccsesessss Parts List
113 Exploded Diagram

115 .eeeceseeeeee-- Weapon Service Record

INTRODUCTION

In the U.S. law enforcement environment, the select-fire submachine
gun (smg) is primarily issued as a supplement to the duty handgun
or as a replacement for the shotgun. The submachine gun, being
shoulder-fired, generally provides a higher degree of precision and
"firepower" compared to a handgun for the average user. The longer
barrel and sight radius increase the submachine gun users ability
to engage all targets, both of a smaller size and at a greater
distance (out to 150 meters), with an increased probability of hit,
and thus decreasing the incidence of stray rounds.

The submachine gun, with it’s detachable large capacity magazine
and select-fire operation, provides the user with an enhanced
measure of firepower not available from a conventional handgun
while still sharing commonality of ammunition. The small size and
weight of the submachine gun also makes it easy to store and
transport. Submachine guns are often preferred over heavier
recoiling shotguns by users of a smaller stature, thus increasing
their ability to successfully engage single and multiple targets.

Relatively speaking, the modern select-fire submachine gun of today
is the lever-action Winchester rifle of a century ago.

DESCRIPTION

The Heckler & Koch MP5 Submachine gun is a lightweight, air-cooled,
magazine-fed, delayed blowback operated, select-fire weapon that
can be shoulder or hand fired. The H&K MP5 submachine gun is
chambered for various pistol cartridges to include 9 X 19mm Luger,
.40 S&W, and 10mm Auto. It fires from a closed-bolt position in
semi-automatic, 2 or 3-round burst, and sustained fire modes. The
weapon utilizes the unique H&K roller-locked bolt system used
commonly throughout the H&K family of small arms.

The unique features of the H&K MP5 submachine gun include a free
floating cold hammer-forged barrel, stamped sheet steel receiver,
fluted chamber, straight-line stock and a pistol grip with
ambidextrous safety/selector lever.

The modular design of the weapon consists of six (6) assembly
groups, not including the carrying sling (see page 15). This
design provides an unmatched degree of flexibility as these groups
can be exchanged with optional groups to create various styles of
weapons for numerous operational requirements. This design also
allows assemblies to be repaired separately from the weapon which
can be fitted with a new group and immediately returned to service.

The serial number of the MP5 submachine gun is located on top of
the weapon’s receiver just forward of the rear sight assembly. On
pre-1989 sound suppressed MP5SD models the sound suppressor and
weapon serial numbers match. Serial numbers on the newly
manufactured (post-1989) MP5SD or on the MP5-N, MPSK-N, MP5K-PDW,
MPS5/10 and MP5/40 are not matched to the sound suppressor.

The bare metal surfaces of the MP5 are first phosphated and then a
black lacquer paint is applied over the phosphating. This dry
lacquer coating is applied using a magnetic charge and then baked
onto the metal in an oven. The resulting finish is highly
resistant to salt water corrosion and surface wear.

MODELS AND VARIANTS

There are four (4) officially recognized models of the H&K MP5
submachine gun. Each model has numerous variations within it’s
family.

MP5
(model # 1)

Il_# 5A - MPSA2 nictured

Variant

MP5A2 A2 denotes weapon is fitted a with fixed
buttstock. Select-fire model in caliber 9 x
19mm Luger (also referred to as 9 X 19 mm NATO
or Parabellum) with 8.85 inch barrel, "SEF"
trigger group and fixed buttstock. Developed
in 1965 for the West German Police and Border
Guard.

MP5A3 A3 denotes weapon is fitted a with retractable
buttstock. Same as MP5A2 but fitted with
retractable buttstock.

MPSA4 Same as MP5A2 but with 3-round burst firing
mode and ambidextrous safety/selector levers.

MPSAS Same as MP5A3 but with 3-round burst firing
mode and ambidextrous safety/selector levers.

MPS-N

MPSSFA2

MP5SSFA3

MPSPT

N stands for "Navy" model. Select-fire model
in caliber 9 X 19mm Luger with 8.85 inch
barrel, ambidextrous trigger group with safe,
semi and fully-automatic firing modes and
retractable buttstock. Has threaded barrel to
mount optional H&K stainless steel sound
suppressor and front sight post with tritium
dot as standard features. Intended to be used
with or without the sound suppressor attached
and with subsonic or supersonic ammunition.
Developed in 1986 for the U.S. Navy Special
Warfare community.

NSN: 1005~-01-360-7146

SF stands for "Single-fire". Same as MP5A2
but is fitted with an ambidextrous trigger
group with safe and semi-automatic only firing
modes. :
Normally termed a semi-automatic carbine, the
MP5SF comes standard with H&K’s detachable
flash hider. Versions delivered after 1
December 1991 are assembled with select-fire
bolt carriers allowing select-fire operation
if fitted with a select-fire trigger group.
Developed in 1986 in response to the American
FBI solicitation for "Omm Single-fire
Carbines". While they fire only in semi-
automatic mode, MP5SF’s are still considered
to be NFA (National Firearms Act) weapons by
the Bureau of Alcohol, Tobacco and Firearms
and are therefore considered machine guns and
treated as such.

Same as MP5SFA2 but is fitted with a
retractable buttstock.

PT stands for “Plastic Training". Special
training version of the MP5. Designed to
shoot plastic bullets produced by Dynamit
Nobel of Germany. Weapon operates like
standard MP5 but has a floating chamber and no
bolt rollers to function properly when firing
the lighter plastic projectiles. Weapon is
marked with light blue cocking handle and
lettering. Is also available with various
buttstocks and trigger groups. Developed for
use by the West German Police and Border
Guard.

Variant

MP5S8D1

MP5SD2

MPSSD3

MPS5SD4

MPSSD5

MPSSD6

MP5SD-N

MPSSD
(model # 2)

Ill.# 7A - MP5SD3 pictured

SD stands for "Suppressed". 1 denotes weapon
fitted with a receiver cap, no buttstock.
Select-fire model in caliber 9 X 19mm Luger
with ported 5.73 inch barrel,"SEF" trigger
group, receiver cap, and an integral but
detachable aluminum sound suppressor.
Designed to be used exclusively with standard
supersonic ammunition with the suppressor on
at all times. Developed in 1971 for the West
German Police and Border Guard.

Same as MP5SD1 but fitted with a fixed
buttstock.

Same as MP5SD2 but fitted with a retractable
buttstock.

NSN: 1005-01-144-3036

Same as MP5SD1 but with 3-round burst firing
mode and ambidextrous safety/selector levers.

Same as MPS5SD2 but with 3-round burst firing
mode and ambidextrous safety/selector levers.

Same as MP5SD3 but with 3-round burst firing
mode with ambidextrous safety/selector levers.

N denotes "Navy" version. Same as MP5SD3 but
fitted with ambidextrous trigger group, front
sight post with tritium dot and a stainless
steel suppressor. Developed in 1986 for the
U.S. Navy Special Warfare community.

Variant

MPSK

MPS5KA1

MP5SKA4

MPSKAS

Has a modified cocking lever support to
account for the slightly larger outside
diameter of the stainless steel sound
suppressor used exclusively on the MP5SD-N.

MP5-K
(model # 3)

Tll.# 8A - MP5-K pictured

K stands for “kurz" which means short in
German. Select-fire model in caliber 9 X
19mm Luger with 4.50 inch barrel, "SEF"
trigger group and buttcap (no buttstock).
Developed in 1978 for the West German Police
and Border Guard for one handed use or for
concealed carry in shoulder rigs or special
firing attache cases.

Al in MP5K nomenclature denotes weapon without
adjustable sights. Otherwise the MP5KAl1 is
identical to the MP5K. Developed for use
exclusively with optional aiming devices or
for use within the special firing attache
cases.

Same as the MP5K but with 3-round burst firing
mode and ambidextrous safety/selector levers.

NSN: 1005-01-259-2895

Same as MP5KAl1 but with 3-round burst firing
mode and ambidextrous safety/selector levers.

MPSK-N

MPSK-PDW

N denotes "Navy" version. Same as MP5K but is
fitted with a longer 5.50 inch threaded barrel
with the 3-lugs found on the MP5A2. Allows
the weapon to be fitted with the optional H&K
screw-on stainless steel sound suppressor or
muzzle mounted accessories.

The MPSK=-N also comes standard with
ambidextrous safety/selector lever and a front
Sight post with a tritium dot.

Developed in 1986 for the U.S. Navy Special
Warfare community. Because of it’s longer 5.5
inch barrel and ambidextrous safety/selector
lever, the MP5K-N will not fit in the special
firing attache case made for the standard MP5-
K without modification of the case.

PDW stands for "Personal Defense Weapon".
Same as MP5K-N but fitted with a folding
buttstock. This weapon is marked "MP5K-N" on
the top of the receiver, not MP5K-PDW as it is
an MP5K-N modified in the U.S. simply by
adding the folding buttstock. Allows the
shorter MP5-K to be fired from the shoulder.
Can be used with the optional muzzle-mounted
accessories to include the flash hider, blank
firing attachment or screw-on sound
suppressor. Developed in 1991 by HK-Inc in
the U.S. for personal defense and VIP
protection details. The rigid folding
buttstock of the MP5K-PDW can be fitted to any
MP5-K variant without modification.

MP5/10 & MP5/40
,. (model # 4

Ill.# 9A - MP5/40 pictured

Variant

MP5/10 Select-fire model in caliber 10mm Auto with
8.85 inch barrel. Available in a variety of
trigger group and buttstock variations to
include the MP5/10A2 with fixed buttstock and
the MP5/10A3 with retractable buttstock.

Comes standard with threaded barrel,
ambidextrous safety/selector levers and
carrying sling, synthetic magazines, LO
impulse locking piece, and bolt catch.

Available with optional 2 or 3 round burst
firing mode. Developed in 1991 for U.S.
Federal Law Enforcement sale. First
production weapons imported into the U.S.
after March 1993.

MP5/40 Same as MP5/10 but chambered for the .40 S&W
cartridge.

MP5 submachine guns equipped with fixed or retractable buttstocks
are normally delivered with wide forearms, one 30-round magazine,
one multi-purpose carrying sling and an operators manual. All MP5K
models are delivered with one 15-round magazine and an operators
manual (no sling).

All MP5’s can be fitted with optional ambidextrous trigger groups
providing firing modes of semi-automatic (single-fire) only, senmni-
automatic and two-round burst only, semi-automatic and three-round
burst only, semi-automatic with two or three round burst and fully-
automatic (sustained fire), or semi-automatic and fully-automatic
(no burst fire). These complete trigger groups are interchangeable
during operator disassembly and reassembly without special tools.
Complete trigger groups are interchangeable between all variants of
the MP5 and MP5SD, between all variants of the MP5-K, and all
variants of the MP5/10 and MP5/40. Trigger groups should not be
mixed between the above specified models except where noted as some
of the component parts (ejectors, plastic grip) are different
between models.

HISTORY

The H&K MP5 submachine gun was first produced in the mid-1960’s as
the "HK54". H&K’s internal Protocol Department established this
acronym "HK54" for it’s first 9mm submachine gun based on the
following code.

First Letter Type of weapon Second Letter Caliber

1 Box-fed light 1 7.62 X 51 mm
machine gun

2 Belt-fed machine 2 7.62 X¥ 39 mm
gun

3 Select-fire assault 3 5.56 X 45 mm
rifle

4 Paramilitary rifle 4 9 X¥ 19 mm
(German)

5 Submachine gun 5 (not used)

6 Grenade launcher, 6 4.6 X 36 mm
complete weapon

7 Grenade launcher, 7 (not used)
add-on weapon

8 (not used) 8 (not used)

9 Semi-automatic para- 9 40 mm

military rifle (USA)

The H&K HK54 received it’s current acronym "MP5" when it was
officially adopted by the West German government for use by it’s
Police and Border Guard as the "Machine Pistol 5", or MP5.

The first MP5’s were imported into the U.S. in the very early
1970’s. Original HK-Oberndorf produced MP5’s were imported into
the U.S. and thus marked with "Harrington & Richardson", "Saco",
"HK-Inc., Arlington, VA", “HK-Inc., Chantilly, VA", and the present
marking "HK-Inc., Sterling, VA". This stamp is located on the
right side of the magazine well. All 23 or more of the officially
recognized variants of the MP5 submachine gun have been imported
into the U.S. The MP5 submachine gun is imported into the U.S.
exclusively by Heckler & Koch, Incorporated (HK-Inc.), located in
Sterling, Virginia, for law enforcement and military sale.

The MP5 submachine gun is manufactured by Heckler & Koch,
GmbH.("Inc." in German} in the town of Oberndorf in the Federal
Republic of Germany. The town of Oberndorf, located approximately
one hours drive south of the city of Stuttgart, is also the same
town where the famous arms manufacturer Mauser is located.

Heckler & Koch was founded in 1949 by three engineers, Messrs.
Heckler, Koch and Seidel as a manufacturer of machine tools, gauges
and precision parts. H&K became famous in the 1959 when the new
West German Army adopted the H&K G3 assault rifle in caliber 7.62
X 51 mm NATO (.308 Winchester). Since then H&K has designed and
manufactured more than one hundred different types of firearms and
devices for the most elite and respected military and law
enforcement organizations in the world.

There are at present 14 licensed manufacturing plants in the world
producing H&K weapons for the host country. H&K MP5’s are produced
under license in Saudi Arabia, Mexico, Greece, Pakistan, the United
Kingdom, and elsewhere. Only those weapons produced at HK-GmbH are
sold, serviced, supported or guaranteed in the U.S. by HK-Inc.

TECHNICAL SPECIFICATIONS

9x19mm 9x19mm 9x19mm 9x190m 9x19
Parabelun Parabelum Parabelun Parabelum Parabelum
Delayed Delayed Delayed Delayed Delayed Simple Delayed
Blowback Blowback Blowback Blowback Blowback Blowback Blowback
jg Bolt System Roller- Roller- Roller- Roller- Roller- Inertia Roller-
Locked Locked Locked Locked Locked Bolt Locked

Curved metal
18 or 30-rd
box magazine

aeelts Beers res sm [rao |rs-ewo | wa | wa | mm | | me | 7s - ao | ee

6 Grooves R.H.;
7 turn in 9.86"

Plastic Trng | Parabelum

4 Operating Principal

ig Modes of Fire

0 - Safe 3 - 3-rd Burst
1° Semi-auto $ - Sustained
2 - é-rd Burst

Rotary rear sight w/4 peep apertures, adjustable for windage & elevation, fixed front
sight post

Any optical device using H&K's claw lock-on scope mounts

4 Weight «w/o Magazine (b(kg)
aw/ Buttcap
aw/ Fixed stock
«W/ Retractable stock
«h/ Folding stock
«Empty magazine oz(g)
«15 round
«30 round

5.59 (2.54) 5.59 (2.54) 5.59 (2.54)

6.34 (2.88) | 6.34 (2.88)

4.23 (119)
6.0 (170)

«Cartridge oz(g) +42 (12) -42 (12) -42 (12) -62 (12) -42 (12) +07 (2) -42 (12)
«Trigger pull (b(n) 5.6 - 7.9 5.6 - 7.9 5.6-° 7.9 5.6 - 7.9 5.6 - 7.9 5.6 - 7.9 5.6 - 7.9
(25 - 35) (25 - 35) (25 - 35) (B - 35) (25 - 35) (25 - 35) (25 - 35)

fg Length in¢mn)

« Barrel

4 W/ Buttcap

aw/ Fixed stock

awW/ Retractable stock
extended/retracted

aw Folding stock
extended/ folded

«Sight radius

8.85 (225) | 8.85 (225) 5.73 (146)

P1.67 (550)

RS.98 (660)/ P5.98 (660)/

3.38 (340) 13.38 (340) 13.38 (340) [13.38 (340)

Se il ed iol ree sued

4 Height intmm) 8.26 2.26 car | 8.26 (210) | 8.26 (210) | 8.26 (210) | 8.26 e.26 «210 | 8.26 2.26 car | 26 ca |e. 26 8.26 «210 |
eee ee an

4 Width intmmn)
«a ¥/ Stock folded

TECHNICAL SPECIFICATIONS (cont.)

mPSK

9x19am 9x19mm 9x19mn 9x19mn
Parabelum Parabelun Parabeiun Parabelun Parabellum
Delayed Delayed Delayed Delayed Delayed Delayed Delayed
Blowback Blowback Blowback Blowback Blowback Blowback Blowback
jg Bolt System Roiler- Roller- Roller- Roller- Roller- Roiler- Roller-
Locked Locked Locked Locked Locked Locked Locked
Straight synthetic

30-rd
box magazine

4 Operating Principal

a Modes of Fire
0 - Safe 3 - 3-rd Burst
1 - Semi-auto $ - Sustained
2 - 2-rd Burst

6 Grooves R.H.;
1 turn in 9.8" —————

Sights Mechanical Rotary rear w/4 U-shaped apertures,

adjustable for windage/elevation

Any optical device using H&X's claw lock-on scope mounts

a Weight «W/o Magazine lb(kg)
«tf Buttcap

aw/ Fixed stock

aw/ Retractable stock
ew/ Folding stock

« Empty magazine oz(9)

4.4 (2.0)

7.5 (3.4)

6.14 (2.79)

«15 round 4.23 C119) 4-23 C119) 14.23 (119) | 4.23 (119) 4.23 (119)

«30 cound 6.0 (170) |6.0 (170) |6.0 (170) [6.0 (170) 16.0 (170) 74.0 (113) [4.0 (113)
«Cartridge oz (9) 242 (12) 62 (12) -42 (12) «42 (12) -42 €12) -61 (17.3) ] .64 (17.3)
aTrigger pull (btw) 3.6 - 7.9 5.6 - 7.9 5.6 + 7.9 5.6 - 7.9 5.6 - 7.9 5.6 - 7.9 5.6 - 7.9

(25 - 35) (25 - 35) (2 - 35) (2 - 35) (25 - 35) (25 - 35)

a tength in(mm)

«Barrel

aw/ Buttcap

aw/ Fixed stock

«aw/ Retractable stock
extended/ retracted

aw Folding stock
extended/ folded

« Sight radius

5.73 (146) | 5.73 (146) 5.5 (140)

3.8 (351)

B0.42 (773)/ P5.98 (660)/

N0.25 (260)

120 / 5 feo 7 5 10 ¢ 16 [110 ¢ 16 B 90 / to
3 24

4 Width intma)
auf Stock folded

4 Locking piece Degree/Marking

NOMENCLATURE

cabetor 2 Bolt Group Becott.

aha hide Rod
ront Bolt Head— 30]
are BES ES vgE BS poeueayeee ier Grou

rd
ing = PN atene plat idk
fessine ie ————

F ea Forearm 5
rea
Ope ing Magazi orgleese
Magazine 6
Safety {selector Pee locking pin
ESaRESE BESUP
Ill.# 15A - Assembly Groups (MP5A2/A3 pictured)
Note: 1. Assembly Groups (includes carrying sling where

applicable)

OPERATING CONTROLS AND THEIR USE

Safety/selector lever - This control is arguably the most
important control found on the MP5. Located on the trigger
group (pistol grip) of the weapon, actuation of this lever
determines whether the weapon will fire and if so in what
mode. It therefore acts as both a safety lever and a selector
lever on the MP5. This control is normally actuated with the
thumb of the firing hand and is located only on the left side
of the original "SEF" trigger group or on both sides of the
ambidextrous trigger groups. The safety/selector is rotated
into the various firing modes or safe position by depressing
the tail end of the lever. Tactile clicks (stops) are present
at each position to provide a positive stop and to prevent
inadvertent rotation.

When rotated into the "safe" position the release of the
hammer is blocked by the solid portion of the safety axle
located inside the trigger group. Rotating the
safety/selector lever into any of the firing modes will allow
the hammer to be released and the weapon to fire in the
selected mode of operation.

The safety/selector lever should be set at "safe" position
at_all times unless the weapon is being fired.

Mode of Fire Symbols - Symbols denoting the mode of fire of
the MP5 submachine guns are located on the trigger group of
the weapon. There are three basic versions of these symbols
used over the years on the MP5 in the U.S. They are commonly
referred to as the "SEF", the "pictogram" and "numerical"
trigger groups symbols, or markings. The common rule of thumb
with all H&K trigger groups is white is "safe", red is "fire",
or danger. All safety/selector levers can be removed from the
trigger group without tools during field stripping.

SEF - Original German markings and very common in the
U.S. and world wide. In use from 1960’s through the
present.

S - in white denotes safe and stands for "Sicher"
in German.

E- in red denotes semiautomatic and stands for
"Einzelfeuer" in German.

F - in red denotes fully automatic and stands for
"Feuerstoss" in German.

The SEF symbols appear on both side of the plastic
trigger group. The tail end of the safety/selector lever
along with the white indicator line, located on the right
Side of the axle, is moved into alignment with the
appropriate firing mode symbol by the operator prior to
squeezing the trigger to fire the weapon. The SEF
trigger group is often a bad choice for the left handed
shooter as a thumb rest is molded into the left side of
the pistol grip for the right handed operator. A better
choice for the left handed operator is the ambidextrous
trigger group which has a left and right side
selector levers and no thumb rest.
Tye Sh .

Pictogram - Newer style markings available on the MP5
beginning in the early 1980’s. Often referred to as
international symbols for obvious reasons, they are the
simplest for all persons to understand as each symbol
represents the number of rounds that will be fired when
the trigger is pulled and held rearward with a full
magazine inserted in the weapon.

One white bullet in a closed white box denote
safe.

f=! One red bullet in a closed red box denotes
semiautomatic, or one bullet only with each
pull of the trigger.

Two or three red bullets in a closed red box
denotes two or three round burst, or two or
three rounds respectfully with each pull of
the trigger.

Seven red bullets in an open ended red box
denotes fully automatic, or as many rounds
that can be fired before the trigger is
released or the magazine is emptied.

from left from right
Ill.# 17A - Pictogram Markings

As with the SEF symbols, the pictogram symbols also
appear on both sides of the trigger group. To place the
weapon in one of the firing modes the tail end of the
safety/selector lever is rotated to bring the white
indicator line in line with the appropriate symbol. All
trigger groups marked with the pictogram symbols are
ambidextrous groups without a thumb rest for use by right
and left handed operators.

Numerical - The numerical symbols are the least common
encountered in the U.S. and could be considered an
interim and special order symbol, more often seen
everseas. They combine the letter/number symbols similar
to the SEF group but provide ambidextrous safety/selector
levers and pistol grip.

8 - in white denotes safe and stands for "Sicher" in
German.

E - in red denotes semiautomatic and stands for
"Einzelfeuer" in German.

3F - in red denotes three-shot burst and stands for
"Drei-Schuss-Feuerstoss" in German.

F - in red denotes fully automatic (unlimited) and
stands for "Unbegrenzter Feuerstoss" in German.

The numerical symbols appear on both right and left sides
of the trigger group. As is done with the ambidextrous
trigger groups with pictogram symbols, the tail end of
the safety/selector lever is rotated to bring the white
indicator lines into alignment with the desired firing
mode. = ‘

Ill.# 18A - Numerical Markings

The various modes of fire and their applicable symbols appear
in different combinations on the host of optional trigger
groups available for the MP5. An individual may find other
types of foreign country or user specific symbols on H&K MP5
trigger groups throughout the world that are not mentioned
here. Generally the location of the various modes of fire are
the same on similar style trigger groups, only the symbol at
that position would vary based on the native language or

preference of the specific customer for which that item was
made.

Cocking Lever - The cocking lever is located above the
forearm/foregrip of the MP5 and protrudes from the cocking
lever housing (tube) at approximately a 45 degree angle. This
solid control is attached to a tubular piece within the
cocking lever housing called the cocking lever support which,

in turn, makes contact with the forward extension of the bolt
group.

The cocking lever is generally operated with the non-firing
hand, allowing the firing hand to remain on the trigger group.
The position of the cocking lever allows easy actuation
without the need to break out of the firing position.

The cocking lever on the MP5 is non-reciprocating and thus
does not move with the bolt as it cycles in the weapon. The
cocking lever is held in a forward position by a spring detent
located in the front end of the cocking lever support which
engages in the cocking lever housing. The cocking lever only
travels rearward when it is manually operated by the operator.

To lock the bolt rearward, the cocking lever is pulled fully
to the rear and rotated slightly clockwise where it can be
hooked into the indent in the cocking lever housing. To
properly release the bolt forward it is recommended that the
cocking lever be "slapped" forward by passing the palm of the
non-firing hand from right to left across the top of the
weapon and pushing the cocking lever out of the indent. The
compressed recoil spring will drive the bolt group forward
with more than sufficient force to chamber a round.

Do not ride the cocking lever forward. by hooking the fingers
around the cocking lever. Slap the cocking lever forward as
described above.

The cocking lever is not attached to the bolt group and
therefore cannot be used as a forward assist to fully seat the
bolt group.

Bolt Catch - The bolt catch, positioned on the left side of
the receiver of the weapon above the trigger (see ill. # 9A),
is available only on the MP5/10 and MP5/40 submachine guns.
This device performs the same function as any conventional
bolt catch found on other weapons in the world. That function
is to hold the bolt group to the rear anytime the bolt catch
release lever is engaged by the operator or by the follower of
an empty magazine and the bolt is cycled rearward.

To engage the bolt catch, the bolt catch release lever is
pressed upward by a small tab located on the magazine
follower. This action in turn positions a metal tab in the
way of the bolt as it returns forward. This tab holds the
bolt group rearward and the chamber open until the bolt catch
release lever is pressed downward by the operator.

Generally, the operator uses his/her non-firing hand to
depress the bolt catch release lever to close the bolt of the
weapon. The bolt can also be released by removing the empty
magazine or replacing it with a loaded magazine and pulling
the cocking lever fully rearward and releasing.

While the bolt catch may also be engaged by the operator to
lock the bolt open, it is a much similar operation to simply
retract and lock the cocking lever into the notch in the
cocking lever housing as is done with the 9mm MP5.

There has been a great deal of discussion about the usefulness
of a bolt catch on a weapon and the obvious absence of such a-
device on some H&K weapons, specifically in this case the MP5
in caliber 9mm Parabellum. The are many good, valid reasons
that this simple device was not incorporated into the design
of the 9mm MP5. These same reasons apply as to why a bolt
catch has not been incorporated into the 9mm MP5 even though
it exists on the 10mm Auto and .40 S&W caliber MP5’s, the H&K
G41 rifle and at least three prototype weapons designed by H&K
over the past 15 years.

The MP5 submachine gun was designed, like most H&K rifles,
without the bolt catch that the American user has grown
accustomed to since the Ml Garand rifle was first issued in
the 1940’s. Since that time the bolt catch has appeared on
most, if not all, American service rifles.

Many users of the MP5 have grown up with this feature and feel
the MP5 is incomplete without it.

The MP5 was designed for the West German Police and Border
guard along the same specifications as the 7.62 X 51 mm NATO
G3 rifle issued to the West German Army. The German Army did
not want the bolt of the G3 to lock to the rear at any time
and leave the most important areas of the weapon, the breech
and receiver, open to the intrusion of any debris (sand, dust,
water, etc.) that may find it’s way into the weapon and affect
the reliability of the rifle.

Many of us believe that when the bolt locks to the rear

it is an immediate indicator that the weapon is empty.
Experience, however, has shown that in most cases it is not
the bolt but the trigger that tells the firer that the
magazine is empty. Most shooters, especially those placed
under stress in a shooting scenario, attempt to pull the
trigger two or more times before they glance up at the open
ejection port to learn that the weapon’s empty magazine has
locked the bolt to the rear. Pulling the trigger on an empty
H&K chamber provides the same indication to the firer that the
weapon is empty.

Magazine exchanges with the MP5 are as easily and as quickly

accomplished as with any weapon fitted with a bolt catch,
especially with proper training and with the use of the
optional dual magazine clamps. H&K prefers to train it’s

students to reload the weapon before the magazine is run dry,
thus never leaving the chamber empty and the operator more or
less defenseless. Like speedy magazine changes, this is also
a learned behavior with proper training.

Why then did H&K add this feature to the other H&K weapons
noted above? For no other reason than because so many
American users have grown accustomed to this feature on other
weapons and some desire it on a submachine gun. With the
required changes to the receiver, magazine, magazine well,

trigger group and bolt group to chamber the MP5 in calibers
10mm Auto and .40 S&W it was possible to incorporate a bolt
catch into the design of these weapons as part of that
redesign and in a cost effective manner. Such a modification
to the 9mm MP5’s to simply add a bolt catch, a feature that
offers questionable benefits to an already excellent weapon,
would not be cost effective, nor would it be a feature that
many MP5 users desire.

Magazine Release - The magazine release on the 9mm MP5’s is
a redundant control, that is there are two separate controls
that can be actuated to disengage the magazine from the
weapon. On all MP5’s, there is a magazine release lever
(paddle) located on the rear side of the magazine housing.
This spring actuated lever is normally operated with the non-
firing hand. The lever is depressed and held forward with the
thumb while the magazine is withdrawn down and out of the
magazine well using the four fingers of that same hand. The
magazine release lever springs back into position once it is
released to engage the newly inserted magazine. The magazine
release lever is most often used to remove the magazine over
the other magazine release control, the magazine release
button.

The magazine release button is located on the right side of
the magazine well just above the trigger group locking pin.
This textured button only exists on the 9mm MP5’s and is not
found, for simplicity sake, on the newer 10mm and .40 S&W
MP5’s. The magazine release button activates the same locking
mechanism that this actuated by the magazine release lever.
This control is normally depressed with the index finger of
the firing hand (right hand shooter) while the firing hand is
on the trigger group, if the operators finger is long enough
to reach. This gives the right hand user the ability to drop
the empty magazine with the firing hand as the non-firing hand
retrieves a full magazine, again only if his/her index finger
is long enough to reach the button.

Many operators fingers are not and thus this button is seldom
used but would be available in the event that something would
happen to the magazine release lever and it was not available
to release the magazine.

The left hand operator would generally use the thumb of the
non-firing hand to depress the magazine release button as the
fingers of that same hand remove the magazine from the
magazine well. As with the magazine release lever, the
magazine release button springs back into position once it is
released to engage the newly inserted magazine.

Experienced users of the 9mm MP5’s will install the trigger
group locking pin from right to left to avoid the chance of
the operator depressing the locking pin instead of the
magazine release button during a magazine exchange.

ADVANTAGES OF THE WEAPONS SYSTEM

1s Modular Construction
* Versatility to reconfigure weapon
* Simplified repair and/or replacement of assembly
groups
2. Closed-bolt firing position
* Higher degree of accuracy and controlabilty
* Greater safety compared to open-bolt designs
* Reduced fouling of breech area
3. Recoil operated, delayed roller-locked bolt system
* Locked breech. Strong and safe
* Reduction of felt recoil
4. Fluted chamber
* Equalized pressure on cases. Increased
reliability
5. Free-floating, cold hammer forged barrel
* Increased accuracy
* Longer barrel life. Much higher strength. Safer
6. Light weight and handy

7. True weapons “system"

8. Large number of accessories and options, to include a
choice of three calibers

9. Interchangeability of parts without hand fitting

CLEARING PROCEDURE/UNLOAD

The H&K MP5 is not considered "CLEAR" unless the weapon is on
"safe", the magazine is removed, the bolt and cocking handle
are locked rearward and the chamber if free of any brass or
ammunition. NEVER ASSUME THE WEAPON IS CLEAR!!

To clear the MP5:

Make certain fingers are outside of the trigger
guard and the weapon is pointed in a safe direction
at all times!

ON SAFE - Rotate the safety/selector lever to the
"Safe" position. (With the safety/selector lever
set at the white box with a white bullet symbol
inside or the white "S". See illustrations on page
16 - 18.)

from left from right
Tll.# 23A - Safety/selector lever set on "SAFE"

REMOVE MAGAZINE - Depress the magazine release
lever or button and remove the magazine from the
Magazine well.

Ill.4# 23B - Removing the magazine

COCKING LEVER - Rotate the ejection port towards
the ground and pull the cocking lever rearward one
or more times to insure the chamber is empty.
Watch for live round or empty case to be ejected.

Rotate the cocking lever upward slightly and lock
it into the detent in the cocking lever housing to
lock the bolt open.

————— Se ee ee fs
of Sn ES RET |) Ah
O- —_ eo =_ eS

Ill.# 24A - Retracting the cocking lever

5. INSPECT CHAMBER - Inspect chamber for presence of

live round or empty case.

A. Visually - View chamber through open
ejection port.

B. Physically - Insert index finger through
magazine well and check for presence of a
round or cartridge case in chamber.

(Add photo of index finger checking chamber thru mag well)

Tll.# 24B - Physically checking the chamber

Remove any live rounds or empty cases from the

chamber or from within the weapon or magazine
before handling further.

The H&K MP5 submachine gun is now considered "Clear".

FILLING THE MAGAZINE

Note:

Insert only 30 rounds in the 30-round magazine, 15
rounds in the 15-round magazine! The 30-round
magazine will accept 31 rounds. However it cannot
be fully seated into the magazine well when the
weapon is loaded with the bolt group in a forward
position. To insure that only the right number of
rounds are loaded:

A. Count the rounds as they are loaded
and/or;

B. Look for only the bottom half of the
first loaded round through the bottom
ammunition viewing window located on the
rear side of the magazine housing and/or;

cy Load the magazine to capacity and remove
one round. P

The ammunition viewing windows, located in the back
of the magazine housing, denote the number of
rounds inside when the bottom half of the first
loaded round is visible through a given hole. In
the 30-round magazines each hole represents
increments of 10 rounds, 5 rounds in the 15-round
magazine.

LOADING PROCEDURE

Administrative Loading - Method A (Weapon in "Clear"

condition, cocking lever locked rearward, safety/selector
lever in "Safe" position.)

Used to initially load the weapon before it is to be

fired.

A. Make certain fingers are outside of trigger
guard and the weapon is pointed in a safe
direction at all times!

B. Insert magazine firmly into magazine well.

Tug on magazine to ensure that it is fully
seated and engaged.

Note:

With the open palm of the non-firing hand,
Slap the cocking lever out of the engagement
notch and forward in one motion. DO NOT ride
the cocking lever forward when loading or the
round may not fully chamber!

CAUTION: The weapon is now loaded!

2 Administrative Reloading - Method B (Weapon with cocking
lever and bolt group in a forward position.)

Used to quickly reload the weapon once firing has begun.

Make certain that fingers are outside of
trigger guard and the weapon is pointed in a
safe direction at all times!

Depress magazine release and remove empty or
partially loaded magazine from weapon.

Insert full magazine firmly into magazine
well. Tug on magazine to ensure that it is
fully seated and engaged.

Using the non-firing hand, pull the cocking
lever fully to the rear and release. DO NOT
ride the cocking lever forward when loading or
the round may not fully chamber!

CAUTION: The weapon is now loaded!

Practice exchanging magazines before they become
empty. Doing so and using the Tactical Reloading
method will allow you to reload the weapon while
still having a round immediately available in the
chamber.

Due to the unique design of the H&K MP5 submachine

gun,

the bolt will not lock to the rear when the

magazine is empty, except on the MP5/10 and MP5/40.

SAFETY RULES

Safety Rule # 1
Safety Rule # 2

Safety Rule # 3

Safety Rule # 4

Safety Rule # 5

Safety Rule # 6

Safety Rule # 7

Treat every weapon as if it were loaded.

Never point a weapon at anything or anybody
that you do not intend to shoot, or in a
direction where an unintentional discharge may
result in damage to property, injury or death.

Never place your finger into the trigger guard
until you are ready to fire the weapon.

Be sure of your target and of what’s behind it
before firing! At 25 meters, even a 9mm
projectile can easily penetrate wood or
Plasterboard walls or a car door and may
travel more than 1 mile!

Ensure that all parts of your hands and body
are kept away from the muzzle of the weapon at
all times!

Always wear eye (with side protection when

firing on steel targets) and ear protection
when firing any firearn.

Clear every weapon before handling it.

FIRING PROCEDURE

SELECT FIRING MODE - Using the firing thumb, rotate the
safety/selector lever into the firing position of choice.
(Marked with a red bullet(s) in a closed red box or a red
letter "E" for semi-automatic or "F" for fully-
automatic.)

PLACE FINGER ON TRIGGER - Place the finger on the
trigger only once you have decided to actually fire a
round down range. Place the pad of the index finger (the
meaty portion located between the tip and the first
joint) on the center of the trigger.

TAKE UP SLACK AND PRESS - Take up the slack. Press the
trigger straight to the rear at an even pace and with
consistent pressure until the hammer falls. (A new MP5
has a trigger pull ranging between 6.2 - 7.9 pounds.)

REMOVE FINGER FROM TRIGGER GUARD - Remove the finger

from the trigger and outside of the trigger guard once
you have finished firing or anytime you are moving.

IMMEDIATE ACTION

Immediate Action is the action performed immediately by the firer
any time there is an unscheduled or unanticipated interruption of

the weapons operation when a back-up weapon is unavailable to
transition to. Immediate Action should be practiced to the point
that it occurs as a reflex action.

The "SPORT" method of immediate action, described below, is one
method to quickly remedy most stoppages that may occur with the H&K

MP5 submachine gun or other small arms. These steps must be
performed in the sequence shown below. —

S - SEEK COVER & SLAP the base of the magazine with the non-
firing palm to fully seat the magazine.

P - PULL the cocking lever rearward and hold back.

O - OBSERVE through the open ejection port for:
1. Ejected round or empty case
2. Obstruction in chamber or receiver
3. Next round(s) waiting in magazine
If the chamber and receiver are clear, chamber a new
round. If they are not, remove the magazine and clear
the obstruction by working the cocking lever. If the

magazine is simply empty, exchange it for a full one and
chamber a round.

R - RELEASE the cocking lever to chamber a fresh round.

T - @RY AGAIN to fire the weapon.

If the weapon still fails to fire check for:
i. Obstruction in the chamber and/or receiver, i.e.,
empty case, ruptured case, foreign matter, etc.

2. Faulty magazine. Bent feeding lips or cracked
housing.
3. Bad ammunition

4. Improperly assembled or incomplete weapon or
magazine.

Correct any deficiencies found and resume firing.

OPERATOR DISASSEMBLY

Weapon

1. CLEAR WEAPON!

2. BOLT FORWARD - Place bolt group and cocking lever in the
forward position.

3. REMOVE SOUND SUPPRESSOR - Remove suppressor. Attach
thread cap. (where applicable)

4. REMOVE SLING - Remove multi-purpose carrying sling.
(where applicable)

5. REMOVE PIN AND BUTTSTOCK - Remove buttstock locking
pin(s) and buttstock or buttcap.

NOTE: DO NOT lay the locking pins down!. To prevent
misplacing them, place them back in the
hole(s) in the receiver once the assembly
group has been removed.

6. LOWER TRIGGER GROUP - Pivot the rear end of the trigger
group downward away from receiver and slide the complete
bolt group out of the back of the receiver.

7. REMOVE PIN AND TRIGGER GROUP - Remove trigger group
locking pin and trigger group. Store locking pin in
receiver.

8. REMOVE PIN AND FOREARM/FOREGRIP - Remove forearm
(handgaurd) locking pin (except MP5SD) and
forearm/foregrip. Store locking pin in receiver.
Remove the forearm of the MP5SD by lifting up the
springsteel forearm with a taped flathead screwdriver
inserted between the forearm and the sound suppressor
casing (metal bird cage) above the oval depression
located at the forearms mid-point. Gently pry the
forearm off the receiver using the screwdriver.

9. REMOVE ACCESSORIES —- Remove any accessories, where

applicable, such as a flash hider or blank firing
attachment. (See page 90 "Use of Optional Accessories". )

Ill.# 31A - Assembly Groups - MP5A2/A3 pictured

Assembly Groups
1. Bolt Group -

Notes: A. DO NOT remove the recoil spring and guide
rod from the bolt carrier as it
unnecessarily wears out the nylon washers
that are difficult to replace.

B. DO_NOT remove the extractor spring,
extractor, locking rollers or locking
roller holder from the bolt head! only
an H&K factory trained armorer should
remove these parts.

1.) Remove Bolt Head - Viewing the bolt group from the
front, rotate the bolt head in a clockwise
direction approximately 1/8 turn and lift off of
locking piece.

2.) Remove Locking Piece - Continue rotating locking
piece in a clockwise direction about 1/8 of a turn
until it can be lifted from the bolt carrier.

Note the number, if any, engraved on the top side
of the locking piece. This same numbered locking
piece should be reinstalled in the weapon during
reassembly. (See the list on page 13 "Technical
Specifications" for the correct numbered locking
piece for each model and variation of the MP5.

3.) Remove firing pin and firing pin spring - Lift the

firing pin with spring out of the oval recess in
the front of the bolt carrier.

OPERATOR DISASSEMBLY OF THE BOLT GROUP IS COMPLETE.

Trigger Group -

A. "SEF"

1.)

2.)

3.)

Group
Rotate safety/selector lever - Rotate the

safety/selector lever in a counter clockwise
direction past the "safe" position until the
lever is point up at a 12 o’clock position.

Remove safety/selector lever - Lift the
safety/selector out of the left side of the
trigger group.

Remove trigger mechanism - Grasp the top of
the trigger mechanism by the hammer, ejector
and release lever and pull the entire
subassembly from the plastic grip.

OPERATOR DISASSEMBLY OF THE "SEF'' TRIGGER GROUP IS NOW

COMPLETE.

B. Ambidextrous Groups (Navy, SF, 2 or 3-round burst)

Note:

A. H&K strongly recommends that this
trigger group not be disassembled by
the operator unless absolutely
necessary due to the ease that the
trigger group can be damaged when
incorrectly assembled. Clean the
ambidextrous trigger groups using
solvent, brushes, compressed air and
cotton swabs.

The entire group can be immersed in
solvent for cleaning. Disassemble
the trigger group only if normal
methods of cleaning the interior of
the unit prove ineffective.

B. DO NOT force any of these parts in
place as they may be damaged in the
process! Damage to the components
of this item due to incorrect
disassembly/reassembly will void the
warranty on the item and may result
in the need for costly repairs.

Cc. BEFORE DISASSEMBLING THE TRIGGER
GROUP WITH 2 or 3-ROUND BURST FIRING
MODES, take notice of the position
of the burst counting wheel and it’s
return spring and guide rod. (See
numeral 1 in illustration below)

Before and during reassembly of the
trigger groups WITH BURST MODE make
certain that these parts remain
parallel with the edge of the
trigger housing and hooked on th
metal stud. (See numeral 2 in
illustration below)

SIDS COON RT ce
eee NET Ch eae 4 (2)
= Piinayaiynrnsse

“ip UN

Ill.4# 33A - Correct position of burst counting wheel

Depress release lever - Depress the release lever

(the lever protruding at an angle from the right
side of the trigger group) and allow the hammer to
spring up into firing position.

On fire and pull trigger - Place the
safety/selector lever in the "fire" position. Pull
the trigger and allow the hammer to snap forward.

Locate and depress disassembly lever - Locate the

disassembly lever. (See numeral 3 in illustration #
33B below) It is located inside the trigger
mechanism above the safety axle and to the left of
the long hammer spring. It is bent inward and
under considerable spring pressure.

Depress and hold the disassembly lever all the way
Gown with the right thumb.

pe me 2 :
FRALULL — eee
- —a8 .'

Ill.# 33B - Depressing disassembly lever

DISA

Rotate safety/selector lever - Looking at the left
side of the plastic grip, rotate the
safety/selector lever in a clockwise direction
nearly one complete turn until it stops with the
white indicator line pointing down.

i ;
a -

Ill.# 34A - Rotating the safety/selector lever clockwise

Remove safety/selector lever with axle (left side)

-Still depressing the disassembly lever, pull the
safety/selector lever with axle (left side) out of
the trigger group. Now ou__can release the
disassembly lever.

Remove safety/selector lever (right side) - Remove

the safety/selector lever from the right side of
the trigger group.

Pull trigger mechanism from plastic grip - Grasp

the hammer and ejector and pull the interior
trigger mechanism out of the plastic grip.

SSEMBLY OF THE AMBIDEXTROUS TRIGGER GROUP IS NOW

SSP AvVe eset VE AEE _ AMBIDEATROUS TRIGGER GROUP IS NOW
COMPLETE

DO NOT disassemble this assembly group any further! Only
an H&K factory trained armorer can disassemble this
mechanisn.

Ms,

Magazine -

Note:

The magazine need not be disassembled for
every cleaning. However it should be
disassembled and cleaned during Major
cleaning, when immersed in water or if there
is appreciable fouling inside. You’1l need a
cleaning rod handle and a small flathead screw
driver for disassembly of the 9mm magazine.

CAUTION

SOME COMPONENTS OF THE MAGAZINES (FLOOR PLATE, LOCKING

PLATE AND
CONSIDERAB
POINTED IN

MAGAZINE SPRING) ARE HELD IN PLACE UNDER
LE SPRING PRESSURE. INSURE THE MAGAZINE I8
A SAFE DIRECTION (AWAY FROM THE FACE AND EYES)

AT ALL TIMES DURING DISASSEMBLY AND ASSEMBLY.

9mm Magazine -

A. Position magazine - Hold the magazine in
the left hand with the floor plate
pointing up and the lips resting on the
table.

B. Depress _and_ hold locking plate -

Pointing the magazine away from your face
insert the cleaning rod into the hole in
the base of the floor plate, push down on
the locking plate about 2 inches and hold
there. Shift your grip so that the left
hand is holding the cleaning rod and
magazine in place.

Cc. Remove floor plate - Take the flathead
screwdriver in the right hand and push
both floor plate tabs, located on the
front and back of the magazine housing,
inward to disengage the floor plate.

Remove the floor plate from the base of
the housing.

D. Release locking plate - Slowly and
carefully release pressure on the
cleaning rod and allow the locking plate
and magazine spring to exit the bottom of
the housing.

Remove magazine spring, locking plate and
follower - Remove the magazine spring

with locking plate and follower attached
from the housing.

DO NOT remove the locking plate from the
magazine spring!

10mm/.40 Magazine -

Depress locking feature - Pointing the

magazine away from your face, depress the
serrated locking feature located on the
bottom of the floor plate.

Partially remove floor plate - While the
locking feature is depressed, begin to

Slide the magazine floor plate off of the
magazine housing towards the rear of the
magazine.

Contain magazine spring - Use the other
hand to keep the magazine spring from
shooting out of the magazine housing.

Remove floor plate - Slide the floor
plate completely out of the magazine
housing.

Remove magazine spring and follower -
Remove the magazine spring and follower
from the housing.

OPERATOR DISASSEMBLY OF THE MAGAZINE IS NOW

COMPLETE

OPERATOR DISASSEMBLY OF THE H&K MP5 SUBMACHINE GUN IS
NOW COMPLETE. ONLY A H&K FACTORY TRAINED ARMORER MAY
PROCEED BEYOND THIS LEVEL OF DISASSEMBLY.

REASSEMBLY

The H&K MP5 submachine gun is basically reassembled in the reverse
sequence of which it was disassembled.

Assembly Groups

ds Magazine - 9MM

Place magazine follower on magazine spring -
Place the magazine follower over the top of
the magazine spring as pictured below.

Insert follower and spring - Slide the
magazine follower with magazine spring and
locking plate attached into the magazine
housing.

GLN AANA

Ill.# 37A - Correct assembly of the 9mm magazine components

Cc.

Insert cleaning rod - Insert the cleaning rod
handle through the bottom of the floor plate.
Push the locking plate down against spring
pressure into the magazine housing to a point
approximately one inch below the bottom of the

housing and hold it in that position.

Install floor plate - Slide the floor plate
down the cleaning rod and insert the tabs of
the floor plate into the magazine housing
until they engage in the slots provided on the
front and rear edges of the housing.

Carefully remove cleaning rod - Taking care
that the floor plate is secure, slowly release

pressure on the cleaning rod allowing the
locking plate to come to rest on the floor
plate.

Note:

A. When properly assembled, the locking
plate should rest directly against the
inside of the floor plate thus preventing
the tabs of the floor plate from
disengaging from the slots in the
housing. Tap the base of the magazine on
the table to fully seat a sticky locking
plate. A drop of lubricant will also
help.

B. Using the cleaning rod handle, push down
on the follower. It should move freely
and return under spring pressure.

Magazine - 10mm/.40

Place magazine follower on magazine spring -
Place either end of the magazine spring onto

the base of the follower.

Insert follower and spring - Slide the entire
assembly into the magazine housing. Make sure
that the tab located on the rear left corner
of the follower, used to actuate the bolt
catch, is inserted at the rear left corner of
the housing.

Compress spring - Compress and hold the
spring into the housing.

Install floor plate - With the other hand,
insert the floor plate into the groove
provided in the base of the housing so that
the serrated locking feature is positioned
closest to the rear edge of the magazine
housing. Push the floor plate into position
until the serrated locking feature snaps into
place on the housing.

Check for proper assembly - Check that the
floor plate is positively engaged, that the
magazine follower moves freely in the housing
and rests against the lips of the magazine,
and that the tab on the follower that actuates
the bolt catch is visible through the slot
provided at the rear left corner of the
magazine housing.

2. Trigger Group -

Note:

DO _NOT use force to assemble the trigger
groups or damage to the components may occur.
Read through the instructions completely
before beginning the procedure. Follow these
instructions carefully and you will have no
problem reassembling this device.

"SEF" Group -

1.)

2.)

3.)

Insert trigger mechanism - Fully insert
the trigger mechanism down into the
plastic grip until the hole for the
safety/selector lever lines up.

Install safety/selector lever - Insuring

that the hammer is forward, insert the
axle of the safety/selector lever from
left to right fully into the trigger
group with the lever pointing up at a 12
o’clock position.

‘Press and rotate safety/selector lever -

Press in on the safety/selector lever
against spring tension and rotate it ina
clockwise direction (as viewed from the
left side) into the safe position.

Ambidextrous Group - (Review the disassembly
procedure for this item found earlier in this
document before reassembly.)

DO NOT force any of the components of the
ambidextrous trigger group into place or
try to rotate the safety/selector lever
using any force at all during reassembly

or damage to the unit will occur.

Release hammer - Start this procedure
with the hammer in the forward position
{at rest).

Insert the trigger mechanism - Push the

trigger mechanism into the plastic grip
all the way until the hole for the safety
axle is aligned.

Check burst counting wheel - BURST
GROUPS ONLY - Make certain that the

burst counting wheel, return spring and
guide rod are correctly positioned in the
mechanism as described in the procedure
for disassembly.

Depress disassembly lever and hold -
Push all the way down on the disassembly

lever with the right thumb and hold it in
that position.

Insert the safety lever with axle (left
side) - With the left hand gently insert

the safety lever with axle (left side)
into the hole in the left side of the

Plastic grip ensuring that the white

indicator line points down. Jiggle the
safety lever with axle as you push it all

the way in and flush with the plastic
grip.

Make certain the burst counting wheel,
found only in 2 and 3 round burst groups,
stays properly positioned at all times
during reassembly!

Press in on left safety lever and hold -
Hold the safety lever with axle tight and

flush against the plastic grip by
applying inward pressure with the left
thumb. (There should be no gap between
the plastic safety lever and the plastic
grip!) DO NOT release inward pressure on
the safety lever!

Release disassembly lever - Only now can
you release the disassembly lever once

the safety lever with axle (left side) is
fully installed in the trigger group.

insert the safety lever (right side) -
Still applying pressure on the safety

lever with the left thumb, insert the
right side safety lever in the hole on
the right side of the plastic grip with |
the white indicator line also pointing
down.

9) Press _ in on and rotate safety levers -
Pushing in on the right and left side
levers with the right and left thumbs,
rotate the two levers together in a
counter clockwise direction (viewing the
trigger group from the left side) always
applying that inward pressure.

Note: Do not force the safety/selector
levers to rotate or damage will
occur. These levers should rotate
freely and easily when assembled
correctly. See your unit armorer if
they do not.

Continue to rotate the safety levers
until they stop with the white indicator
lines pointing to the "safe" position.

Note: If the levers do not rotate easily,
remove them and start again at step
4). The plastic safety levers must
rest directly against the plastic
grip before you attempt to rotate
them into position.

3. Bolt group -

Place firing pin spring on firing pin - Place
the firing pin spring over the long end of the
firing pin.

Install firing pin with spring in bolt carrier
Place the firing pin with spring into the
large opening in the front lower portion of
the bolt carrier. The pointed end of the
firing pin should point out of the front of
the bolt carrier.

Install correct locking piece in bolt carrier
Place the correct locking piece (see "Correct
Locking Piece", page 59) over the firing pin.
Push down against the firing pin spring and
insert the tab, located on the cylindrical
portion of the locking piece, into the oblong
notch provided at the 6 o’clock position.
Push all the way in on and rotate the locking
piece in a counter clockwise direction about
an eighth of a turn.

Weapon

D. Install the bolt head - Place the bolt head
over the locking piece and fully rotate the
bolt head and locking piece counter clockwise
until they are in a locked, upright position.

Note: If you removed the recoil spring and
guide rod from the bolt group, YOU/RE
WRONG! Do not remove this component from
the bolt group during operator
disassembly or cleaning.

Install accessories - Install any accessories in
accordance with the instructions found in the section
"Use of Optional Accessories" which begins on page 90.

Install forearm/foregrip - Install forearm (handguarad or

foregrip). Remove stowed locking pin! Insert small
locking pin to secure the forearm or foregrip.

(H&K’s International Training Division suggests
installing these locking pins from left to right to
reduce the chances of these pins being accidentally
pushed out when the weapon is slung against the operators
body and/or equipment. )

To reinstall the MP5SD springsteel forearm, expand either
end of the forearm with your hands and slip the end over
the front of the receiver below the front sight holder.
Insuring your fingers and palms stay away from the edges
of the forearm, slide the handguard down into position
until it snaps in place on the receiver.

Insert the bolt group - Hold the bolt group in the palm
of the hand. Hold the locking rollers in with the index
finger and thumb. Slide the entire group into the rear
of the receiver all the way in until the recoil spring
and guide rod disappear.

Attach the trigger group - Remove stowed locking pin!

Cock the hammer back and align the locking pin hole in
the trigger group with the corresponding hole located at
the rear of the magazine well. Insert small locking pin
to secure the trigger group.

install the buttstock/buttcap - Remove stowed locking

pin(s)! (Retractable buttstocks come off and go on more
easily when retracted!) Place the thumb of the left hand
through the trigger guard and pull and hold the trigger
group up towards the top of the receiver. Align the
forks of the buttstock with the grooves in the receiver
and push it fully into place. Install the large locking
pin to secure the buttstock.

Buttcaps of the MP5-K’s are installed into the back end
of the receiver and retained with the two small locking
pins.

Attach the _ sound suppressor - Attach the sound

suppressor, where applicable, to the weapon and hand
tighten only. Store the protective thread cap of the
"Navy" model MP5’s, MP5/10 and MP5/40 in the cavity of
the pistol grip on the optional holder for thread cap,
available from H&K under ID# 205483, or in a secure, dry
place in your personal equipment.

Attach the carrying sling - (See page 75, "Use of the
Multi-purpose Carrying Sling")

Reassembly of the H&K MPS submachine gun is now complete.

Clear the weapon and perform a Function Check to ensure
that the weapon is assembled properly.

How many locking pins did you lay down during disassembly
and reassembly? The only right answer is 0.

FUNCTION CHECK

Note:

A. A Function Check should be performed anytime the

weapon is reassembled. This quick check indicates
whether or not the weapon has been properly
assembled and/or assembled with all components.
A properly executed Function Check can also reveal
many of the more obvious malfunctions that could
occur between the interactive components of the
weapon.

B. ALWAYS clear the weapon before performing the

Function Check! Don’t ASS U ME the weapon is
clear!

Clear the weapon.

Place the cocking handle and bolt group in the forward
position.

With the weapon on "Safe", pull the trigger. Hammer
should not fall.

Place the weapon on "Semi-automatic". Pull the trigger
and hold the trigger back. Hammer should fall.

Still holding the trigger back, recock the weapon.
Release the trigger. Listen for the "click" of the

trigger and sear resetting. Pull the trigger. Hammer
should fall.

Place the weapon on "Burst", if applicable. Recock the

weapon. Pull the trigger and hold the trigger back.
Hammer should fall.

Still holding the trigger back, recock the weapon.
Release the trigger. You should not hear the hammer

fall. (The hammer should already be forward.)
Place the weapon on "Fully-automatic", if applicable.

Recock the weapon. Pull the trigger and hold the trigger
back. Hammer should fall.

Still holding the trigger back, recock the weapon.
Release the trigger. You should not hear the hammer

fall. (Again, the hammer should already be forward.)

The Function Check is now complete.

Note:

You may check the function of the burst mode of the
trigger group when the group is off of the weapon before
reassembly. Perform the same steps list above but you
will manipulate the hammer and release lever with your
hand instead of with the bolt group through the cocking
handle when the weapon is assembled.

When checking the 2-round burst mode, you will want the
hammer to move forward (when you press down on the
release lever) only two times between every release of
the trigger. On the 3-round burst mode, the hammer
should move forward three times.

OPERATING PRINCIPLE

General - The MPS submachine gun is a delayed blowback
operated weapon utilizing a roller-locked bolt. The weapon
fires from a closed bolt (bolt forward) position and employs
a fixed barrel. At the moment of cartridge ignition the bolt
is positively locked to the barrel extension, the cylindrical
component that the barrel is pressed and pinned into, which in
turn is welded to the receiver.

The weapon’s operating principle is often described as "recoil
operation". Loosely speaking, this is the German translation
of “blowback operation". The bolt group of the MP5 is driven
rearward as a result of the pressure created by the expanding
propellent gases produced from the burning powder in the
cartridge case and the recoil energy produced by that gas
pressure which acts upon components of the weapon not directly
exposed to the actual propellent gases. It is therefore easy
to understand why this style operating principle might be
termed as recoil operation by the German designers as the
recoil energy does contribute greatly to the actuation of the
weapon and it’s component parts beyond the point where the gas
pressure directly contacts the operating parts.

In the English language, using the definition of “recoil
operation" to describe the operating principle of the MP5 is
often misleading as the typical English description of "recoil
operation" includes a barrel that recoils rearward along with
the bolt group during the unlocking stage. The barrel of the
MP5 is of course fixed and does not recoil with the bolt
group. The difference is strictly the definition of the type
of operation.

As a “delayed blowback" weapon the MP5 differs from a "simple
blowback" weapon in the important difference that the bolt
group of the MP5 is, at the moment of cartridge ignition,
rigidly locked to the barrel extension of the weapon, and thus
the chamber is sealed, until the projectile has left the
barrel and the gas pressure within the bore has dropped to a
safe level. This delay is caused by the pair of locking
rollers positioned within the bolt group of the MP5.

Operating Cycle - There are eight steps in the operating
cycle of the MP5 submachine gun. They are listed in the text
below in bold print and in parenthesis. They are:

* Firing - Ignition of the cartridge.

* Unlocking - Actuation of the breech mechanism that
results in the opening of the chamber.

* Extraction - Removal of the cartridge case from the
chamber.

* Ejection - Expulsion of the cartridge case from the
weapon.

* Cocking - The resetting of and storage of energy in
the mechanism which provides the energy to ignite the
primer of a live cartridge.

* Feeding - The transference of the live cartridge from
the feed mechanism in the direction of the chamber.

* Chambering - The insertion of the live cartridge into
the chamber of the weapon.

* Locking - The actuation of the breech mechanism that
results in the closing, and sealing, of the chamber.

MP5 Bolt Group Operation - The weapon is loaded, the hammer
is cocked and the safety/selector lever is set on "fire".

Pulling the trigger releases the cocked hammer, which strikes
the firing pin. The firing pin is driven forward against the
resistance of the inertia style firing pin. If the bolt group
is fully forward and locked to the barrel extension, the
firing pin will possess sufficient length to reach the primer
of the chambered round through the bolt head. If the bolt
group is not fully forward, the firing pin will not strike the
primer. Assuming that the firing pin does strike the primer
the primer will in turn ignite the propellent powder within
the cartridge case (Firing).

The propellent gases generated force the projectile through
the barrel. Gas fills the shallow flutes cut along the length
of the chamber to prevent the cartridge case from expanding
and sticking to the inside walls of the chamber.

Propellent gases exert pressure on the cartridge case in all
directions. This force is transferred through the base of the
cartridge case to the bolt head. (See illustration # 47A

below) Cartridge Bolt head Locking piece Firing pin

Barrel Barrei extension Locking rolier “Bolt head carrier

Ill.# 47A - Bolt group in locked (closed) position, ready for firing

A portion of these forces is transmitted through the locking
rollers to the locking recesses in the barrel extension and to
the angled shoulders of the locking piece. The balanced
angular ratio of the locking piece and the locking recesses
transfer a portion of the total recoil force into the receiver
through the locking recesses and, more importantly, into the
bolt carrier which is attached to the locking piece. There
is a calculated delay to allow the projectile to exit the
barrel and the gas pressure to drop to a safe level before the
chamber opens. The delay results from the amount of time it
takes for enough recoil energy to be transferred through to
the bolt carrier in a sufficient quantity for it to be driven
to the rear against the forces of inertia of the bolt carrier
and the forward pressure exerted against the bolt group by the
recoil spring.

As the bolt carrier is forced rearward the locking piece is
withdrawn from the bolt head and the locking rollers can be
cammed into the bolt head by the locking roller recesses in
the barrel extension. Only once the locking rollers are fully
cammed into the bolt head can the entire bolt group begin it’s

rearward movement in the receiver. At that same time the

seal is broken on the chamber. (Unlocking) See illustration
# 47B below. cee

Supporting surface

Ill.# 47B - Bolt group in unlocked position

In the course of the rearward movement of the bolt group the
cartridge case is pushed from the chamber of the weapon by
residual gas pressure. (Extraction)

The cartridge case is held securely in place on the bolt head
by the extractor until the front tip of the ejector strikes
the rim of the cartridge case as the bolt recoils rearward.
The front end of the ejector is pivoted up into position
through the bottom of the bolt head to strike the cartridge
case as a result of the rear of the ejector being pushed down
by the recoiling bolt carrier. At that moment the case is
propelled from the weapon through the open ejection port.
(Ejection)

As the bolt group travels rearward energy is stored in the
recoil spring as it is compressed by the bolt group. At the
same time the hammer is depressed to a point where it can be
retained by the sear or catch. (Cocking)

Once the bolt has reached it’s rearward most position, it
begins it’s forward travel as a result of the energy stored in
the compressed recoil spring. As the bolt nears the magazine,
the ejector spring that was compressed during the ejection
stage now forces the rear of the ejector up and the front of
the ejector down and out of the way of the bolt group.

If a cartridge is present in the magazine the compressed
magazine spring will lift the cartridge into a position
under the magazine lips. The lower portion of the bolt head
drives the cartridge from the magazine. (Feeding)

In the 9mm MP5, when the magazine is empty, the bolt travels
forward over the magazine follower. In the 10mm and .40 S&W
caliber MP5’s, the small tab located on the rear left corner
of the magazine follower lifts the bolt catch into a position
where it can impede the forward progress of the bolt group,
thus locking the bolt open.

The cartridge, pushed from the magazine by the bolt group, is
directed into the open chamber. (Chambering) As the
cartridge assumes a horizontal position during feeding the rim
of the cartridge cases snaps in under the lip of the extractor
and is therefore held securely in place on the face of the
bolt head.

As the front edge of the cartridge case makes contact with the
shoulder in the chamber the face of the bolt head contacts the
rear of the chamber which stops it’s forward movement. The
bolt carrier, however, is still free to move forward as a
result of the gap that exists between it and the bold head.

The forward movement of the bolt carrier pushes the locking
piece through the bolt head. The angles located on the front
shoulders of the locking piece force the locking rollers into
the locking recesses in the barrel extension.

Once the locking rollers are fully engaged in these recesses
the locking piece and bolt carrier stop their forward
progress. (Locking)

The cartridge is now chambered, the bolt locked and the weapon
is ready for the firing.

MPS Trigger Group Operation -

Safe - When the safety/selector lever is set in the safe
position, the solid portion of the safety axle is presented to
the rear extension of the trigger. The safety axle blocks the
movement of the trigger which in turn prevents the sear from
being disengaged from the sear notch located in the hammer.

Semiautomatic mode ~- The safety/selector lever is rotated |
into the semiautomatic position. The hammer is held rearward
in a cocked position by the engagement of the front top corner
of the sear in the rearmost notch (sear notch) of the hammer.
The hammer spring is compressed on the hammer strut. The rear
end of the sear rests on the top shelf of the trigger. The
sear is held rearward by the hammer spring through the hammer
and upward by the elbow spring.

As the trigger is pulled a notch located in the rear extension
of the trigger passes into a cut out in the safety axle. This
cut out allows for sufficient depression of the front of the
sear. The sear disengages from the sear notch on the hammer.
The hammer begins to rotate on it’s axis to strike the firing
pin due to the energy stored in the compressed hammer spring.
Simultaneously, the sear spring pushes the sear forward. As
it does the rear end of the sear drops down onto the lower
shelf on the trigger thus raising the front top corner of the
sear into a position where it can engage the hammer as it is
recocked by the bolt group. As the bolt travels forward the
hammer is held in a cocked position by the engagement of the
sear in the sear notch on the hammer.

Once the trigger is released, the hammer presses rearward on
the sear against the weaker sear spring which causes the rear
end of the sear to reset on the top shelf of the trigger. The
trigger mechanism is now ready to release the hammer to fire
the next round with the next squeeze of the trigger.

Ce ee

Ill.# 49A - Semiautomatic fire

Fully automatic Mode - The first round of fully automatic
fire is fired in the same manner as a semiautomatic shot
described above. When the safety/selector lever is rotated
into the fully automatic mode, the cut out in the safety axle
is fully presented to the rear extension of the trigger. This
allows the trigger to be pulled further to the rear than in
the semiautomatic mode. This drops the front top corner of
the sear below the point where the hammer can reengage it as
it is recocked, even when the rear end of the sear jumps down
onto the lower shelf on the trigger.

At this point when the bolt group travels forward the hammer
is not held rearward by the sear. It is momentarily held
rearward by the engagement of the catch in the forward most
notch (catch notch) in the hammer. The hammer will be held in
that cocked position until the release lever is depressed by
the forward moving bolt carrier. Once the bolt group is fully
locked the release lever has been depressed to the point where
the catch is pressed forward and disengages from the catch
notch in the hammer. The hammer is then automatically free to
strike the firing pin and fire the weapon. This process
continues until the trigger is released or the magazine is
emptied.

If the trigger is released the sear is repositioned to
reengage in the sear notch, as described above in the
description of the semiautomatic mode of fire, and firing is
interrupted.

s
)

Ill.# 50A - Fully automatic fire

Burst mode - When the safety/selector lever is set on the
burst firing position, the axle rotates a tooted counting
wheel into position. This toothed count wheel will hold the
Sear out of engagement with the hammer for the total number of
rounds in the burst provided the operator holds the trigger
rearward long enough for all rounds to fire. After the last
round of the burst is fired the sear is automatically released
to engage with and hold the hammer in the cocked position.

Each time the trigger is released, whether the entire burst
has been fired or not, the toothed counting wheel will
automatically reset at zero to begin the full count over
again. Thus, the H&K style burst device is described as
having "no memory". It always provides the full burst as long
as the trigger is held rearward long enough to allow all two
or three rounds to fire.

Advantages of the delayed blowback, roller-locked bolt system

Closed bolt operation - safe, accurate, reliable

Locked breech - safe

Simple, straight-line breech opening and closing
Geometrical transmission of recoil energy - less felt recoil
Push vs Pull extraction - more reliable

Lightweight breech bolt - lightweight weapon

Incorporates firing pin safety by design - safe

Strong and simple construction - trouble free use
Insensitive to ammunition variances

Fluted Chamber - more positive extraction, ejection

eee ee ee He HF

SAFETIES

1. Safety/selector lever - The safety axle, when rotated
into the safe position, blocks the movement of the
trigger. This in turn prevents the disengagement of the
sear from the sear notch on the hammer, thus preventing
the weapon from firing should the trigger be pulled or
the weapon dropped.

2. Sear Disconnect - The sear disconnect prevents the
weapon from firing more than one round in the
semiautomatic mode of fire. The function of the sear, as
described above in section entitled "Trigger Group
Operation, Semiautomatic Mode", ensures that even if the
trigger is held rearward after the round is fired the
sear will catch the hammer and prevent it from riding
forward on the bolt carrier where it could possibly
strike the firing pin firing.

The design of the trigger mechanism of the MP5
incorporates two strong springs that keep the sear in
positive engagement with the hammer notch at all times in
the event the weapon is dropped with a round chambered
and the safety/selector lever set on "fire".

The sear spring holds the sear forward. The catch
spring, and to a lesser extent the trigger spring, hold
the sear upwards into engagement with the hammer. This
design thus acts as a drop safety function.

The H&K factory requires that the MP5 pass a drop safety
test of 1.9 meters (6.23 feet) with a live round in the
chamber, the safety/selector lever set at "fire" and the
hammer cocked.

a Firing pin/bolt group design - The design of the bolt
group, consisting of a separate bolt head and bolt
carrier separated by a small gap when unlocked, prevents
the firing pin from striking the primer of the cartridge
unless the bolt is fully locked forward. This prevents
the weapon from firing if the hammer follows the bolt
forward, if the bolt is not fully locked or during manual
release of the bolt group.

OPERATOR CLEANING

The functional performance of any mechanical device varies greatly
on the quality and frequency of the maintenance performed on that
item. Firearms are no exception. The operator spends most of the
time with the weapon and therefore has the best opportunity to
perform the necessary upkeep required to insure top performance at
all times.

New MP5’s are coated in a thick, oily preservative that should be
removed prior to the weapon being used or fired. This preservative
oil, applied by H&K personnel prior to the shipment of the weapons
from the manufacturing facility in Germany, guarantees that the
weapons and accessories will remain corrosion-free during storage
and transport. However, this preservative fluid is not considered
a lubricant and therefore should be removed and replaced with a
high-quality weapons lubricant whenever’ possible. This
preservative fluid attracts debris and dirt and possesses little or
no lubricating qualities.

Cleaning the MP5 need not take hours and a great deal of effort.
With the right equipment a very fouled MP5 should be able to be
thoroughly cleaned in less than 10-12 minutes. A solvent tank
where the parts can be immersed in and scrubbed will save a great
deal of time and effort as will compressed air to blow off the
fouling and solvent or to spread the lubricant. There are
companies, such as "Safety-Kleen", that sell or rent such solvent
tanks and will exchange the solvent on a regular basis at a
reasonable price.

If such a set up is not available to you, a complete weapons
cleaning kit specially designed for the H&K MP5 will reduce your
cleaning time and make the job easier.

H&K’s own “Modular Weapons Cleaning Kit" contains all of the
specialty brushes (chamber, bore, and chamber face) designed
specifically for thorough cleaning of the H&K MP5. The following
cleaning procedures are based on the use of this kit.

Any quality weapons solvent or oil can be used to clean the MP5.
Basically, if it’s safe to put your bare hands into it won’t hurt
the surfaces of the weapon. "Break-Free" (CLP), "Ballistol", or
any of the other brand-name cleaners or lubricants specifically

designed for use with weapons will work well on the MP5.

At H&K we recommend two types of operator cleaning. Normal
cleaning and Major cleaning.

Normal cleaning - Performed after each firing or every twelve
(12) months.

Major cleaning - Often referred to as "detailed cleaning".
Performed on an unsuppressed MP5 after 1,000 rounds (500 for
a suppressed MP5) or when the weapon is exposed to or
excessively laden with sand, dust, water or other visible
contaminants or foreign matter.

(The cleaning intervals listed here are recommendations only!
Your intervals between cleaning will vary greatly depending on
many factors to include the type of ammunition used, the
environment in which the weapon is operated, and the
thoroughness of your cleaning, etc.)

Normal Cleaning -
1. CLEAR THE WEAPON !

2% Disassemble the weapon into the major assembly groups.

3. A. Sound Suppressor, aluminum or stainless steel (where
applicable)

On the MP5SD only, attach the optional Barrel Cleaning
Device (H&K ID # 225376) to the end of the sound
suppressor body. Push the entire assembly over the end
of the barrel all the way down until the cleaning device
(similar to a battery terminal cleaning brush used on car
batteries) makes contact with the base of the barrel.
Rotate the sound suppressor and the cleaning device ina
clockwise direction 6-7 complete turns and remove.

This will clean the exterior of the barrel and the thirty
(30) barrel ports that vent the propellent gases (and
carbon) into the sound suppressor when the weapon is
fired.

In a weapon with a severe buildup of carbon on the
outside surface of the barrel the sound suppressor may be
difficult to unscrew or remove from the barrel. This
excessive buildup occurs when the barrel cleaning device
is not used frequently enough during and/or after firing.
The carbon has accumulated to the point where it bonds
the sound suppressor to the threads of the barrel.

At this point a more aggressive cleaning method must be
taken. Remove the sound suppressor without using tools.
Have one person hold the weapon down while the other
unscrews the sound suppressor. For a sound suppressor
that is impossible to remove immerse the upper portion of
the sound suppressor and barrel in solvent to help loosen
the carbon bond. Let the solvent work for one hour. Try
again to remove the sound suppressor, with your bare
hands only. The use of tools to try and remove the sound
suppressor will damage the aluminum housing and destroy
the unit. If at this point you can still not unscrew the
sound suppressor, contact H&K’s Repair Department for
further assistance.

Once the sound suppressor is unscrewed it may be
difficult to slide it off of the barrel over the ring of
carbon built up around the gas ports. Work the sound
suppressor back and forth along the length of the barrel
to break up the ring of carbon so that it can be removed.

Once the sound suppressor is removed, use a large, flat
head screwdriver to scrape away the build up of carbon on
the exterior of the barrel only. If possible, cut a dull
concave shape into the end of the screwdriver so that it
conforms to the outside radius of the barrel to prevent
gouging of the barrel’s surface. Keep the screwdriver
away from the threads and the front one inch of the
barrel, which acts as a bearing surface for the sound
suppressor. Remove the carbon by holding the screwdriver
on a shallow angle attaching the barrel through the slots
in the barrel casing. Do not use too much force. Take
care only to remove the carbon build up. Once you have
finished with the flathead screwdriver, use the barrel
cleaning device as described above to clean off the
remaining carbon particles.

For all H&K Sound Suppressors - Use a nylon bristle
toothbrush and rag or swab to remove all fouling from the

threads of the sound suppressor. Tap the sound
suppressor lightly on a padded surface or blow it out
with compressed air to remove any loose fouling from
inside the suppressor body. (Do Not immerse the sound
suppressor in solvent or insert any rods, brushes or
patches into the sound suppressor body!

Wipe the outside of the sound suppressor off with a
clean, oil-free rag. Do not apply oil to the outside of
the sound suppressor or it will burn off during firing
and obscure the firers view of the target.

Multi-purpose carrying sling

The cotton webbing of the multi-purpose carrying sling
can be cleaned using warm soap and water and a soft
bristled brush. Allow the sling material to dary
completely before storage or use.

The metal components of the sling and the ambidextrous
sling mounting pins can be cleaned using standard weapons
solvents and oils.

Buttstock or buttcap

Simply remove any foreign debris from the exterior of
these parts using a toothbrush, rag, swabs or compressed
air when available.

Trigger group

Remove any foreign debris from the plastic pistol grip
using a toothbrush, rag, swabs or compressed air.

Scrub the top of the hammer, ejector and the area around
the front of the ejector and release lever with a small
amount of solvent or oil to break up the carbon fouling.
Remove the loose fouling and debris by rinsing the metal
components in the a solvent tank or by using rags, swabs,
or compressed air.

Forearm or foregrip

Remove any foreign debris from the forearm or foregrip
using a toothbrush, rag or compressed air.

Receiver/barrel group
Start with the bore and chamber.

Bore - Apply a liberal amount of solvent to a bronze
bristle bore brush of the appropriate caliber. Always
insert the bore brush from the chamber end and push it
all the way through the barrel in the direction that the
bullet travels. Pull the brush back through the barrel.
DO NOT allow the brush to stop in the bore or it may get
stuck! Repeat this in/out procedure for a minimum of
three complete trips. Remove the bore brush and let the
solvent work in the bore for a few minutes while you
clean other components.

Chamber and flutes - Apply a liberal amount of solvent to
the appropriate chamber brush. Insert the chamber brush
through the back of the receiver into the chamber. DO NOT
push the chamber brush past the chamber! Work the
chamber brush back and forth in the chamber at least
three times. Remove the chamber brush and let the
solvent go to work on the fouling for a few minutes while
you work on other components.

Chamber face and barrel extension - Often considered the
hardest area to clean in the MP5, it is easily tackled
using the special Chamber Face brush available in the H&K
Modular Weapons Cleaning Kit for submachine gun. Attach
this brush to the cleaning rod and lock the handle so
that the rod and brush can be turned together. Apply a
liberal amount of solvent to the bristles of the brush.
Insert the brush through the back of the receiver until
it makes contact with the area surrounding the opening to
the chamber and bore and the solid cylindrical metal
piece that the barrel is pressed into (called the barrel
extension).

With slight inward pressure, rotate the brush in a
clockwise direction to break up the carbon fouling built-
up on the inside radius of the barrel extension and on
the face of the chamber. Use the same procedure through
the magazine well and bottom of the receiver to reach the
entire radius of the barrel extension. Continue this
procedure until you are satisfied with your efforts.

Receiver - Apply a few drops of solvent to a toothbrush
and scrub the area around the barrel extension and along
the length of the receiver rails to break-up the carbon
fouling.

Muzzle threads on "Navy" models, MP5K-PDW, MP5/10 and
MP5/40 - Use a nylon bristle toothbrush and a small
amount of solvent to remove any fouling from the muzzle
threads where the screw-on suppressor attaches and from
the protective cap that covers the threads when the
suppressor is not attached.

Remove all of the fouling, carbon, and visible debris
from the entire receiver/barrel group using a solvent
tank and compressed air or swabs, patches, rags etc.

Run at least three clean patches of the appropriate size
all the way through the bore in the direction of bullet
travel to remove the loose fouling and solvent.

Bolt group

Scrub all parts of the bolt group with a toothbrush and
solvent where carbon in visible, especially around the
extractor and the bolt rollers. Insure that the rollers
are clean enough that they move in and out easily. Use
the locking piece to force the rollers out of the bolt
head for easier cleaning with the toothbrush.

DO NOT remove the extractor for cleaning! You may damage
the extractor spring. There is no functional need to

remove the extractor for Normal cleaning.

Remove the loose fouling from all parts using a rag,
swabs or compressed air.

Magazine

Don’t _ forget the magazines! They are very important and
very often overlooked during cleaning. Many stoppages

occur as a result of improperly maintained magazines.

Apply a few drops of solvent to a toothbrush and scrub
the top of the magazine to remove any visible carbon
fouling or loose debris. Pay special attention to the
front edge of the housing, the feed lips and the
follower.

Remove the solvent and loose fouling from the magazine
using a rag, swabs, or compressed air.

Major Cleaning -

As mentioned earlier, Major cleaning should be performed after
1,000 rounds are fired through an unsuppressed MP5 or 500 rounds
through a suppressed MP5. Major cleaning is also performed when
the weapon has been immersed in water or is laden with large
amounts of visible foreign matter or fouling.

During Major cleaning, all weapon components except the suppressor
and the carrying sling, should be rinsed with or immersed in
solvent and scrubbed thoroughly with a brush. This includes the
magazine and it’s parts. The components can then be dried using a
rag or swabs, though compressed air is preferable for major
cleaning.

If any assembly groups require a more thorough cleaning, an "Ultra-
sonic" cleaning machine can be used containing any solvent that it
is safe to place your bare hands in, as a general rule. Further
disassembly of any assembly group(s) beyond the level described
above must be performed by, or at a minimum supervised by, an H&K
factory-trained armorer.

OPERATOR INSPECTION

During or after cleaning the operator should inspect the weapon and
it’s components for any irregularities that may causes problems
during it’s operation. If any potential deficiencies are noted,
they should be corrected immediately and/or brought to the
attention of the unit armorer.

In general, the operator should keep a watchful eye out for the
following discrepancies both in the weapon as a whole and in each
assembly group.

bi Improper function

2. Missing parts

3. Cosmetic flaws (cracks, dents, burrs, rust, etc.)
4. Improper assembly

5. Loss of spring tension (where applicable)

6. Uncustomary looseness (where applicable)

7. Cracked welds

8. Excessive wear

9. Absence of protective finish (where applicable)
10. Absence of proper lubrication

Also check these more common areas where problems may begin in the
H&K MP5.

Magazine housing -

* Bent feed lips - replace magazine

* Split or bowing appearing in top of front seam
above oval reinforcement plate. - replace magazine

Bolt head -

* Loose extractor (easily moved with finger) -

replace extractor spring

* Broken or missing locking roller holder (rollers
fall out of bolt head) - replace locking roller
holder and locking rollers (Note: In an emergency
the locking rollers can be replaced without the
locking roller holder and the weapon used as
normal. Replace the locking roller holder as soon
as possible. Never shoot the weapon without two
locking rollers installed.)

* Cracks appearing near corners of roller openings -
replace bolt head

* Broken or missing firing pin spring - replace
firing pin spring

Recoil spring and guide rod -

* Worn or missing nylon washers - reverse guide rod.
Replace nylon washers as soon as possible

Correct locking piece -
Marking should appear on top side of locking piece. DO

NOT interchange different locking pieces between
different model MP5’s.

Model (s) Marking
MP5K/KA1/K-N/PDW 16
MP5K-N & MP5K-PDW with 80°

folding stock and sound
suppressor attached

MP5A2/A3/SF/N/PT No Marking
MP5SD/SD-N 5
MP5/10 & MP5/40 HI 25 (High impulse ammo*)

LO 24 #£4=(Low impulse ammo**)

* High Impulse - Generally ammunition with a muzzle
velocity exceeding 1,100 feet per second.

x* Low Impulse - Generally ammunition with a muzzle
velocity below 1,100 feet per second.

The different locking pieces have different angles on the
forward shoulders where they make contact with the
locking rollers. The various angles control how quickly
the bolt opens after ignition of the cartridge. Locking
pieces are selected for a particular variation of the MP5
based on the length of it’s barrel (including the
integral sound suppressor of the MP5SD), it’s caliber and
it’s unique functional characteristics. The bolt must
stayed locked closed until the projectile has left the
bore and the gases drop to a safe level. Exchanging
locking pieces does not represent a safety hazard but may
change the functional characteristics of the weapon

slightly. Therefore, do not mix locking pieces in
different models of the MP5.

E. Rear sight -

* Insure that the drum turns freely and with tactile
clicks and that the locking screw, located in the
top of the sight assembly, is tight.

F. Carrying sling -

* Insure that the cotton webbing is not rotted or
frayed and that the metal hardware is secure and
free of cracks.

* That the rubber O-rings on the mounting pins for
the ambidextrous carrying sling are present on the
threaded shaft and complete.

LUBRICATION

Any type of high-quality, medium-weight lubricant (oil)
specifically designed for use on firearms such as "Break-Free"

(C.L.P.) or "Ballistol" will work well on the H&K MP5 submachine
gun.

DO NOT use lubricants/cleaners that boast of their ability to

penetrate metal (i.e. "WD-40", "Tri-Flow", etc.) as these
substances may deaden primers.

Where and how much?
NO Lube - (surface is dry and not slippery to the touch)

* Suppressor body
* Sling webbing
* Plastic components

LIGHT Lube - (finger run across surface yields little or no lube)

Bore and chamber
All metal parts (except suppressor)
Muzzle and suppressor threads
Trigger mechanism and safety axle
Metal buttstock
Magazine (interior and exterior)
All operating controls (cocking lever, bolt catch, magazine
catch, etc.)
* Rear sight assembly
* Cocking lever support detent (located at front end)
* All metal accessories

+ FF + HF

MEDIUM Lube - (finger run across surface yields some lube but lube
does not run down surface when held in a vertical
position)

* Bolt group with recoil spring and guide rod

HEAVY Lube ~ (Lube runs down surface when held in a vertical
position)

NO _ HEAVY Lube is required on the H&K MP5 submachine gun!
Reapply lubrication to the MP5 periodically during firing as it
burns off from the heat. Suppressed weapons generate more smoke
and noxious gases especially when over lubricated.

Apply lubricant using a shaving brush, swabs, patches, or rag. A

spray bottle also works well using compressed air to circulate the
lubricant into all parts and to remove the excess.

poise Sie er RSS La IE f5 ee reer ws GSS ra a a gt a ee ts Sate Rae sealant

SPECIAL USE AND MAINTENANCE OF H&K SOUND SUPPRESSED
WEAPONS

In addition to the basic maintenance instructions provided earlier,

sound suppressed weapons require additional special attention from
the operator.

All weapons with sound suppressors require more cleaning than the
same type of weapon without a sound suppressor. This is because
the sound suppressor is designed to capture or "suppress" the
expanding propellent gases that exit the muzzle of the weapon
behind the projectile. These gases exit the weapon at a supersonic
velocity causing a "muzzle blast". The sound suppressor captures
these propellant gases, contains them within a series of baffles or
chambers and allows them to escape at a slower velocity thus
eliminating the muzzle blast.

At the same time that the gases are contained, sd is the carbon
fouling and propellant debris that would normally be blown out of
an unsuppressed weapon with the propellant gases. More fouling and
debris stays behind in a sound suppressed weapon and thus there is
more for the operator to remove during his cleaning.

In order to be effective, a sound suppressed weapon must also
provide some means to reduce or eliminate the supersonic "crack’ of
the projectile as it leaves the muzzle at a supersonic velocity
(above 1,088 feet/second at sea level). This can be accomplished
in two ways. One. By venting gases from behind the projectile as
it passes through the bore and sound suppressor thus lowering the
exit velocity of the bullet below 1,088 feet/second. Or two, by
firing ammunition in the weapon that is down-loaded to a velocity
below the supersonic range. For this reason this ammunition is
termed "subsonic" and usually falls into the range between 875 -
1,050 feet/second. Both methods are effective but each has it’s
own disadvantages and advantages.

There are two different styles of sound suppressed MP5’s currently
available from H&K. The integrally sound suppressed weapon like
the MP5SD and the screw-on style sound suppressed weapon like the
MP5-N. Both versions are of the "wipeless" design, meaning they
have no rubber or synthetic membranes (wipes) that the bullet must
penetrate. The projectile does not touch any portion of the H&K
wipeless sound suppressor. Wipeless designs are far more durable
than other designs and generally give the best accuracy results.

MPSSD/SD-N with integral suppressor -

The MPS5SD was designed to be used exclusively with
supersonic ammunition with a muzzle velocity of at least
1,088 feet/second at sea level. It should not be used
with subsonic ammunition with a projectile weight of less
than 140 grains! While subsonic ammunition with a
projectile weight of less than 140 grains fired in the
MPS5SD may provide enough recoil energy to cycle the
action of the weapon it may not provide sufficient
terminal ballistics downrange to incapacitate the target.

The use of subsonic ammunition in the MP5SD will not
result in an appreciable increase in the sound reduction
of the weapon (only about 1 dB in fact). Thus there is
little or no reduction in the report of the weapon yet
there will be a considerable (16 - 24 %) reduction in the
velocity of the projectile and subsequently the terminal
effect of that projectile on target.

The advantage of the MP5SD is that the user can use
standard supersonic ammunition, available worldwide, and
have an effective sound suppressed weapon without the
need for special subsonic ammunition. The disadvantage
to the MP5SD is that it should not be used with the
subsonic loads with projectile weighing less than 140
grains and it must be used at all times with the sound
suppressor attached.

Attached to the MP5SD is a 12 inch long, sealed, all
aluminum sound suppressor that can be removed by the
operator for cleaning. This integral sound suppressor
surrounds the weapon’s 5.73 inch barrel which has thirty
(30) gas ports drilled into it close to the receiver.
Like all MP5 barrels the MP5SD barrel is cold hammer
forged with six conventional lands and grooves arranged
in a constant right hand twist and is pressed and pinned
into the receiver.

The thirty gas ports in the MP5SD barrel vent propellent
gases into the sound suppressor and lower the velocity of
the bullet anywhere from 16 to 26 percent. This
reduction depends greatly on the cartridge used.

Located at the base of the attached sound suppressor is
a 1 3/8 inch rubber O-ring that seals off the back end of
the sound suppressor. This O-ring should be checked for
serviceability (complete and pliable) during inspection
and should be replaced when the sound suppressor is
replaced.

The sound suppressor of the MP5SD was not designed to be
fired full of water. The MP5SD-N "Navy" incorporates a
stainless steel sound suppressor of nearly the same
dimensions as the standard aluminum version that does
allow it to be fired with water inside, should water
enter the unit during an operation in or near water.

Fitting the stainless steel MP5SD-N sound suppressor to
the standard MP5SD requires the modification of the
cocking lever support to account for the slightly larger
diameter (@ .50 mm) of the "Navy" MP5SD sound suppressor.

The special Barrel Cleaning Device (H&K ID # 225376)
should be used to clean the barrel and gas ports of the
MPS5SD after every firing or every 500 rounds. If it is
not used regularly the sound suppressor may become hard
to unscrew or remove due to the excessive buildup of
carbon fouling during firing, especially when using
excessively dirty ammunition. (See "Normal Cleaning" of
the sound suppresssor on page 53)

MP5-N "Navy", MPS5K-N, MP5/10 and MP5/40 with screw-on
sound suppressor -

These weapons are designed to be fired using supersonic
or subsonic ammunition with any weight projectile and
with or without the sound suppressor attached. There
lies their major advantage over the more specialized,
integrally suppressed MP5SD. The H&K MP5K-N and MP5SK-PDW
use the same screw-on stainless steel suppressor designed
for the MP5-N. The MP5/10 and MP5/40 use the same
aluminum sound suppressor which will not withstand the
pressure of being fired if full of water.

The MP5-N/K-N/PDW sound suppressor is 7 1/4 inches long
and weighs @ 1.70 pounds. It is intended to be used with
subsonic ammunition for maximum sound suppression. The
MP5-N/K-N/PDW and MP5/10 and MP5/40 do not have vented
barrels as is found on the MP5SD and therefore do not
lower the velocity of the ammunition fired in then.
These screw-on sound suppressors can be used with
supersonic ammunition but the supersonic "crack" of the
projectile will still remain even though the sound
suppressor does eliminate the "muzzle blast" caused by
the propellent gases.

Accuracy from the screw-on sound suppressor is excellent,
often better than the weapon without the sound suppressor
attached, though there is sometimes a slight change in
zero when the sound suppressor is attached. This is
mostly due to the longer distance that the projectile
must pass through (similar to firing through a longer
barrel) on it’s way to the target.

Effectiveness and service life of the H&K sound suppressors varies
greatly due to countless variables. Some of these variables
include the type and quantity of ammunition used, the predominant
mode of fire used, the operational environment in which the weapons
are employed, etc. Generally, the aluminum MP5SD and MP5/10 and
MP5/40 sound suppressors and the stainless steel "Navy" sound
suppressors, when used with the recommended ammunition, provide @
30 - 35 decibels sound reduction when compared to an unsuppressed
weapon.

However, the service life of the stainless steel and aluminum
versions vary greatly. An aluminum sound suppressor will generally
maintain it’s effectiveness to @ 20,000 rounds. The stainless
steel sound suppressors, being made of a much harder and more
durable and heat resistant material, generally maintain their
effectiveness in excess of 40,000 rounds.

Older H&K sound suppressors can be replaced by the operator for a
reasonable cost without the need for factory fitting. Many teams
will keep the older sound suppressor for training and maintain the
newer one for operational use where peak performance is desired.

Observe the following recommendations

* DO NOT use subsonic ammunition in the MP5SD with a bullet
weight of less than 140 grains

* DO NOT attempt to open the sound suppressor body

* DO NOT allow the gas ports to become clogged. Use the

MP5SD Barrel Cleaning Device every 500 rounds to clean
the barrel and gas ports.

* DO NOT allow the sound suppressor to loosen during use.
Do not use any form of tool or wrench to install or
remove the sound suppressor. Sound suppressors should be
hand tightened only. If the sound suppressor will not
unscrew from the weapon, consult the section entitled
"Normal Cleaning" of the sound suppressor on page 53 or
call Heckler & Koch for guidance.

* DO NOT fire the MP5SD, MP5/10 or MP5/40 with the standard
aluminum sound suppressor full of water. Allow the water
to drain from the sound suppressor before attempting to
fire the weapon.

DO NOT fire the MP5SD without the sound suppressor
attached.

DO NOT fire the MP5SD if the rubber O-ring is not present
around the base of the barrel.

DO NOT attempt to fire the weapon if the sound suppressor
has been dented or damaged or fits loosely on the weapon.

DO NOT exchange locking pieces between various models of
the MP5.

DO NOT insert anything into the body of the sound
suppressor such as a cleaning rod or brush.

DO NOT add to or fire the weapon with oil, grease or any
foreign matter inside.

Keep the protective cap for the muzzle threads of the
MP5-N, MPSK-N, MPSK-PDW, MP5/10 and MP5/40 on the barrel
at all times when the sound suppressor is not attached.
Store the cap on the optional holder in the pistol grip
(H&K ID# 205483) when the sound suppressor is attached.

Keep the muzzle threads and threads of the sound
suppressors and protective cap as clean as possible at
all time to insure that the sound suppressor can be
easily attached when required. Clean the threads with a
nylon toothbrush or patch soaked in oil or solvent.
Lightly lube the clean threads once they are clean.
Dirty threads make it very difficult to attach the sound
suppressor.

AMMUNITION

The MP5 submachine gun was designed to use ammunition designed to
NATO specifications. Like an automobile engine, you cannot expect
top performance by using poor quality fuel. The same applies to

firearms.

There are a number of general considerations that should

be made when choosing the type of ammunition your organization
plans to use in their MP5’s.

BO USE

9 X 19mm NATO, Parabellum or Luger ammunition of recent
manufacture, preferably with a projectile weight of at
least 100 grains for optimum reliability

Clean burning ammunition

Non-corrosive ammunition

Jacketed Hollow Point (JHP), "Silver-Tip", ball,
truncated cone, “Hydra Shok", +P, +P+ etc.

Subsonic ammunition (in the MP5SD with a projectile
weight of at least 140 grains)

DO_NOT USE

Reloads or remanufactured ammunition. Beware of military
surplus, foreign or outdated ammunition.

Aluminum cased ammunition
Non-jacketed or exposed lead ammunition
Corrosive ammunition (primer and/or propellent)

Any ammunition that exceeds NATO pressure limits (maximum
38,000 p.s.i.)

Empty cases as “dummy" (inert) rounds, as damage may
result to the weapon, especially the synthetic magazines

employed in the MP5/10 and MP5/40. Use complete dummy
rounds available for training purposes.

SIGHT ALIGNMENT/SIGHT PICTURE

Front Ill.# 68A - MP5 Diopter sights Rear

The sighting arrangement on the H&K MP5 takes advantage of the
natural ability of the eye and the brain to easily align concentric
circles (circles all having a common center). These sights are
both fast and accurate and are considered the best and easiest to
use in the industry.

H&K calls the sights found on the MP5 "diopter" sights. Diopter

meaning "as seen through". All MP5’s have a rotating rear sight
drum that provides four various width apertures. Rotating this
drum does not change the impact of the rounds downrange. As a

result of the trajectory of the pistol cartridges chambered in the
MPS submachine guns, the bullet strike is generally the same at 25
and 100 meters, when zeroed at 25 meters. The maximum midrange
trajectory height above the line of sight is approximately 4 - 5
inches, depending on the load used. Consequently, elevation
markings are not required on the rear sight drum as they are on the
H&K assault rifle.

The four different size apertures found on the MP5 are provided for
the convenience of each individual shooter, their various shooting
styles, and changing lighting conditions.

Selection of the appropriate size aperture is usually done
according to shooter preference. However, for precise shooting the
firer should select the smallest aperture that still allows a
circle of light between the rear sight aperture and the outside of
the front sight holder.

Rotary rear sight
Aperture
Correct point of aim Point of impact
Even circle of light Circle of light
Front sight

Ill.# 68B - Correct sight alignment/sight picture

Assuming correct sight alignment -

Peep aperture (MP5A2/A3/N/SD/SF/ & MP5/10 and MP5/40 - To
correctly align the sights on the above listed MP5’s, select
the appropriate sized rear sight aperture as discussed above.
Assume a comfortable firing position and place your cheek on
the buttstock within 2 - 4 inches to the rear of the rear
sight aperture. Maintain a consistent cheek position (cheek
weld) on the weapon during firing.

Looking through the rear sight aperture, center the front
sight holder (the ring that protects the front sight post)
within the rear sight aperture with an equal circle of light
around the front sight holder.

The sights are now properly aligned. Maintain that correct
alignment throughout firing by making fine corrections in the
relationship of the front and rear sights.

U-shaped aperture (MP5-K/K-N/PDW) - The rear sight drum on
the K Models of the MP5 differs from that of the other models
of the MP5 due to the fact that, with the exception of the
MP5K~-PDW, the MP5-~-K was originally designed to be used without
a buttstock. Therefore, the small peep apertures have been
replaced with open U-shaped notches so that the sights can be
aligned as the weapon is shot like a pistol, held at arms
length. As in the standard MP5 rear sight drum, the MP5-K
rear sight provides four various sized apertures to meet the
personal preference of each individual shooter. Rotation of
the MP5-K rear sight drum does not change the impact of the
rounds downrange.

The two drums can be interchanged so that the MP5K-PDW shooter
can fire the weapon with the same degree of precision as the
standard MP5 with a buttstock. The sights are exchanged by
using the sight adjustment tool to remove the rear sight drum
and retain the detents and springs as the other rear sight
drum is screwed into place.

To assume the correct sight alignment with open MP5-K rear
sight drum, follow the same procedure used when aligning the
patridge sights of a handgun. Select the appropriate aperture
by rotating the rear sight drum. Looking through the U-shaped
rear sight aperture, center the front sight post within the
rear sight so that there is equal light to the right and left
of the front sight post. Align the top of the front sight
post with the top edge of the rear sight drun.

Maintain that correct alignment to the best of your ability as
you aim and fire the weapon. Errors in sight alignment as the
round fires will result in a angular deflection of the
projectile away from the aiming point in the direction of the
misaligned front sight post. Some examples of the results of
poor sight alignment are shown below.

Impact as with full sight Impact as with fine sight Impact as with incorrectly Impact as with incorrectly
= high = low ‘ centered front sight = left centered front sight = right

Ill.# 70A - Results of incorrect sight alignment

Correct sight picture - The only difference between sight
alignment and sight picture is the addition of the target to
the image seen when aligning the sights. In all variants of
the MP5, the top of the front sight post is used to select the
aiming point of the weapon. As depicted above in illustration
# 68B, the target is centered on the very top of the front
sight post (referred to as a "center hold". An option to a
center hold would be a "6 o’clock hold where the top of the
front sight post is positioned along the bottom of the target.

Regardless of the hold used, the sights must be properly
adjusted so that the projectiles impact at the desired
location on the target, irrespective of the position of the
front sight post to the target.

SIGHT ADJUSTMENT

General information - All H&K MP5 submachine guns are zeroed
before leaving the factory in Germany. The weapon is fired froma
machine rest at a target at 25 meters (27.5 yards). Ammunition

used is standard 9 X 19mm NATO 124 grain ball, commercial 10mm Auto
180 grain Jacketed Hollow Point, or commercial .40 S&W 180 grain
Jacketed Hollow Point loads. The weapons are zeroed using a 6
o’clock hold. All five (5) rounds fired must fall within a circle

no larger than 1.58 inches or the weapon is rejected and returned
for reworking.

In addition to zeroing, each MP5 is proof fired using two over-
pressure proof rounds and function fired with fifteen (15) rounds
of ball using all modes of fire.

Depending on the type of ammunition and the brand used, you may
realize a sizeable difference in zero with a new weapon even though
it was zeroed at the factory. This difference is strictly due to
the different type of ammunition fired.

Background - The special sight adjustment tool, available as an
accessory from H&K under ID # 300009, is used to adjust the rear
sight of the MP5 and to exchange the rear sight drum. The sight of
the MP5 is intentionally designed so that it cannot be adjusted
without this special tool because the West German government wrote
this into the specifications for the weapon.

This specification dates back to when the father of the MP5
submachine gun, the G3 rifle, was designed. All H&K G3 rifles in
the West German army are zeroed at the factory using a machine rest
with an optical sighting device. Each weapon is shipped with the
same battlesight zero.

The German soldier does not adjust the sights of his assigned
weapon for his individual zero, as is done in the U.S. He simply
learns the necessary hold off to bring his rounds to the center of
the target. In this way any German soldier can pick up any G3
rifle and be assured of having a battlesight zero because all
weapons possess the same battlesight zero, as opposed to in the
U.S. where each weapon zero is different.

This cultural difference spills over into the MP5 submachine gun.
Sight adjustment tools are not provided with each weapon as many
users find the factory zero to be appropriate for their use or the
already have at least one sight adjustment tool to make any small
adjustments. Adding a sight adjustment tool to each MP5 would
increase the price of the weapon , even to the users that already
have the tools.

Adjusting the Rotary Rear Sight - The procedure for adjusting the
rotary rear sight on all H&K MP5 submachine guns is the same and
can be accomplished using nothing more than a sight adjustment
tool. The sight adjustment tool consists of two separate parts, a
phillips head screwdriver and a lever cylinder. The lever cylinder
can be stored on the top of the phillips head screwdriver and is
comprised of two spring actuated levers.

All elevation and windage adjustments are made through the rear
Sight assembly.

Adjustment procedure -

Before attempting to adjust the sight:

CLEAR THE WEAPON!

Secure the weapon in a stable position so that the sights
point up and the rear sight is easily accessible. Keep
the weapon from flopping around to make this job easier
and quicker.

Elevation Adjustment -

Cc.

Insert the lever cylinder into the rear sight drum
with the two spring actuated levers projecting into
the two slots, located on the inside of the rear
Sight drum, that have the spring detents in them.
(There are a total of four slots, but only two with
spring detents.)

Do not allow the lever cylinder to rock back and
forth inside the rear sight cylinder during your
adjustment. It must remain immobile.

Holding lever cylinder in place slowly and
carefully insert the phillips head screwdriver into

the top of the lever cylinder until it is fully
inside.

At this point the levers in the lever cylinder
should be depressed inward and should be
compressing the spring detents in the rear sight
drum. , oe eae

Ill.4# 72A - Making an elevation adjustment

Holding the sight adjustment tool in place you
should be able to easily rotate the rear sight drum

independently of the rest of the sight assembly and
the sight adjustment tool.

If any part of the sight adjustment tool rotates
with the rear sight cylinder as it is turned or the

rear sight cylinder cannot be rotated, remove just
the phillips head screwdriver from the lever

cylinder an start again at step B above.

D. Once the rear sight cylinder is free to rotate
independently each movement of the drum is changing
the elevation adjustment of the rear sight.

Once the elevation adjustment is made and the sight
adjustment tool is removed from the rear sight the
spring detents will snap back into place as the
operator selects his preferred aperture.

Direction of Elevation Adjustment - Rotating the rear
sight drum clockwise as viewed from the top of the weapon
moves the impact of the projectiles down on target.
Counterclockwise rotation moves the impact of the
projectiles up on target.

Clockwise = Down
Counterclockwise = Up
Elevation Adjustment Value - For all MP5 submachine
guns, one full revolution of the rear sight drum moves
the impact of the projectile on target approximately

2.25 inches (56 mm) at a range of 27.5 yards (25 meters).

1 complete revolution = 2.25 " at 27.5 yards (25 meters)

Windage Adjustment -

Check the rear sight lock screw (located behind the rear
sight drum) for tightness using the sight adjustment
tool.

Decide which direction you need to move the rear sight.
The general rule of thumb is that you always move the
rear sight in the direction you wish the projectiles to
move on the target downrange.

Use the sight adjustment tool to remove the slack (free
rotation) from the windage adjustment screw in the
direction you intend to move the rear sight BEFORE
loosening the rear sight locking screw. The rear sight
adjustment screw is located on the right side of the rear
sight aoremusy*

Rotate the rear sight locking screw, using the sight
adjustment tool, one complete turn in a counterclockwise
direction to loosen the rear sight assembly.

Loosening the clamping screw Rotating the adjusting screw

Ill.# 74A - Making a windage adjustment

E. Rotate the rear sight adjustment screw in the desired
direction.

Direction of Windage Adjustment - Viewing the rear sight
assembly from the right hand side, rotate the rear sight
adjustment screw using the sight adjustment tool as follows.
COUNTERCLOCKWISE moves impact RIGHT
CLOCKWISE moves impact LEFT
Windage Adjustment Value - For all MP5 submachine guns, one
full revolution of the windage adjustment screw moves the
impact of the projectiles on target approximately 2.16 inches
(55 mm) at a range of 27.5 yards (25 meters).

1 complete revolution = 2.16 " at 27.5 yards (25 meters)

USE OF THE MULTI-PURPOSE CARRYING SLINGS

Description - The unique H&K Multi-purpose slings allow the weapon
to be carried one-handed or hands-free and prevents the loss of the
weapon should the operator fall or an assailant try to take the
weapon away. Due to their design the multi-purpose carrying slings
also allow the firer the ability to transition immediately to a
back-up weapon should the need arise without the worry of loosing
control or possession of the submachine gun.

There are two different multi-purpose carrying slings available
from H&K for use on the MP5 submachine gun. The standard multi-
purpose sling for use by right hand users and the newer
ambidextrous multi-purpose carrying sling designed for use by both
right and left hand users.

Standard multi-purpose carrying sling - The standard multi-
purpose carrying sling consists of two lengths of green cotton
one inch webbing with various metal attachments. (See

illustration # 75A below.
e -Hook

Ill.# 75A - Standard multi-purpose carrying sling

The standard multi-purpose sling attaches only to the left
side of the weapon and requires no addition mounting hardware
other than that which is incorporated into the webbing of the
sling.

A longer standard multi-purpose carrying sling (designed for
the larger G3 rifle) is available for larger operators who
find the webbing of the MP5 sling too short to allow the
weapon to be worn comfortably. It is marked with one vertical
hash mark on the webbing near the carbine hook (The MP5 sling
is marked with three hash marks.) It is available from H&K
under ID# 205501.

Ambidextrous multi-purpose carrying sling - For left handed
operators, H&K offers an ambidextrous multi-purpose carrying
sling (ID# 205213) that can be attached to the right side of
the weapon for left handed carry. This sling requires two of
the ambidextrous sling mounting pins (ID# 700148 for buttstock
and ID# 700154 for the forearm).

These mounting pins are comprised of a pin with eyelet where
the carbine hooks are attached, a knurled locking knob to
secure the pin to the weapon and a small mil-spec rubber o-
ring that acts as a lock washer to secure the locking knob in
place on the mounting pin. The ambidextrous multi-purpose
carrying sling and mounting pins come standard with the MP5/10
and MP5/40 submachine guns.

The ambidextrous multi-purpose sling is assembled using wider
1 1/4 inch green cotton webbing for greater comfort and has
two carbine hooks instead of the rear hook that sometimes
comes off of the buttstock or breaks. It also has a clip
similar to that found on the left side of the magazine well on
the MP5 to allow the weapon to be carried in the High Port
Arms carrying position. Finally, this sling has velcro on the
free end of the webbing to secure the loose strap that is
often taped down or cut off.

As well as being used for left handed carry, these
ambidextrous pins and slings can also be used to lower the
rear position of the sling away from the face of the right
handed shooter and can be used on the early MP5K-PDW’s that
did not have the front eyebolt to attach the sling to.

When using the ambidextrous multi-purpose carrying sling on an
MP5 fitted with a fixed buttstock, one large mounting pin must
be installed in the rear of the receiver for the rear
attachment point as the rear carbine hook on the sling will
not attach to the standard mounting point which is molded into
the buttstock. This sling will fit on a MP5 with a
retractable buttstock without the need for a rear mounting
pin.

When mounted on the right or left sides of the weapon, the
ambidextrous multi-purpose carrying sling is designed not to
interfere or block the operating controls of the weapon or the
ejection port.

Assembly and routing of the multi-purpose carrying slings - The
H&K multi-purpose carrying slings are properly assembled as they
are received from the factory. If they are not disassembled, they
are quickly attached to the weapon. If they have been
disassembled, they must be properly assembled before attachment to
the weapon.

To properly assemble the multi-purpose carrying sling follow the
procedure below.

1. Separate the two lengths of webbing.

2: Lay the bottom length of webbing (that which has the
carbine hook(s) attached to it) on a flat surface.
Position the bottom length of webbing with:

* the carbine hook that is sewn in a stationary
position at the end of the webbing facing to
your left and the buckle to your right.

* The spring actuated gate of the carbine
hook(s) facing down.

* No twists in the webbing.
3 Position the top length of the webbing (that which has
the double eye sewn into the end of the webbing) on top
of the bottom length of the webbing so that:

* The double eye faces to your left.

* The free end of the webbing faces to your
right.
* The double eye forms a "bridge" over the
webbing instead of a "bowl".
* There are no twists in the webbing.
4, Route the free end of the webbing of the top length

through the buckle (under and through) so that 2 -3 three
inches of the end of the webbing are visible to the right
of the buckle.

5% Insert just the tip of the carbine hook on the far left
through the front (furthest from the webbing) opening in
the double eye.

The sling is now ready to be attached to the weapon.

Attachment of the multi-purpose carrying slings -

Standard multi-purpose carrying sling - This carrying sling
will be attached to the left side of the weapon for use by
right hand users only.

CLEAR THE WEAPON!

Position the weapon above the carrying sling which
should still be laid out on a flat surface as
described above. The weapon should be laying on
it’s right side with the barrel pointing to your
left and the sights pointing up.

With the gate of the carbine hook on the left
facing down snap the carbine hook onto the eyebolt,
the circular metal loop located on the left side of
the front sight holder below the front sight.

Attach the hook (the free metal attachment on the
bottom length of webbing) to the sling attachment
bar on the buttstock. This bar is located on the
backplate of the retractable buttstock or molded
into the plastic material towards the rear of the
fixed buttstock.

Once attached, insure that the opening of the hook
faces out and to the rear of the weapon.

To silence and further secure the sling to the
weapon, place a piece of tape through the hook and
the sling attachment bar located on the buttstock.

The standard multi-purpose carrying sling is now
ready for use.

Ambidextrous multi-purpose carrying sling - This carrying
sling is generally attached to the right or left side of the
weapon for use by right or left hand users.

CLEAR THE WEAPON!

For Left Hand Use -

Remove the front locking pin from the
forearm/foregrip and replace it with a small
ambidextrous sling mounting pin so that’ the
circular metal loop is positioned on the right side
of the weapon. Insure that the rubber O-ring is
present at the base of the pin threads and attach
and tighten the locking knob to secure the pin to
the weapon.

Remove the rear locking pin from the buttstock of
the weapon and replace it with a large ambidextrous
sling mounting pin using the same procedure
described in paragraph 1 above.

Lay the weapon on it’s left side on a flat surface
with the barrel pointing to your right.

Position the assembled sling below the weapon
making sure that:

* The front carbine hook that is sewn into
the end of the webbing faces to your
right.

* The free carbine hook, located on the

bottom length of webbing, is positioned
at the left end of the sling.

* The spring actuated gates of the carbine
hooks face up.

* There are no twists in the webbing.
Snap the carbine hooks to the circular metal loops
located on the ends of the sling mounting pins,
with the spring actuated gates facing up.

The ambidextrous multi-purpose carrying ailing: is
now ready for use by the left hand user.

For Right Hand Use -

Lay the weapon on it’s right side with the barrel
pointing to your left and the sights facing up.

Positioned the assembled sling below the weapon
making sure that:

* The front carbine hook that is sewn into
the end of the webbing faces to your
left.

* The free carbine hook, located on the

bottom length of webbing, is positioned
at the right end of the sling.

* The spring actuated gates of the carbine
hooks face down.

* There are no twists in the webbing.

a Snap the front carbine hook onto the eyelet located
on the left side of the front sight holder with the

spring actuated gate facing down.

4. Snap the rear carbine hook onto the sling
attachment bar, located on the left side of the
backplate of the retractable buttstock, with the

spring actuated gate facing down.

NOTE: When attaching the ambidextrous sling to a
weapon with a fixed buttstock or to lower the rear
of the sling away from the face, install one of the
large ambidextrous sling mounting pins into the
hole in the rear of the receiver where the normal
locking pin is located. The rear carbine hook of
the ambidextrous multi-purpose carrying sling is
then attached to that mounting pin.

The ambidextrous multi-purpose carrying sling is
now ready for use by a right hand user.
Donning the MP5 fitted with a multi-purpose carrying sling -

CLEAR THE WEAPON!

1. Pull the double eye over the carbine hook by angling the
Gouble slightly in a clockwise direction. (See
illustration # 80A)

Ill.# 80A - Pulling the double eye over the carbine hook _

2. Grasp the top length of webbing and pull the slack out
the sling to form a large loop. (See illustration # 80B)

Ill.# 80B - Forming a loop in the sling

Carrying Positions -

3. Place the large loop of the sling over your head and
under your firing arn.

4. Adjust the size of the loop by adjusting the length of
the free end of the webbing through the buckle.

Generally, you want to easily be able to shoulder the
weapon with little or no slack in the sling. The weapon
should hang across your lower chest or abdomen when you
release your hold on the weapon.

5. Secure the free end of the webbing by looping it back
through the far side of the buckle and/or taping the end
in place. The free end of the webbing on the
ambidextrous multi-purpose carrying sling provides velcro
to secure the end of the sling.

Ill.# 81A - High Port Arms Carry

High Port Arms Carry - (See illustration # 81A) Used to
administratively carry the weapon high across the chest ina
military “port arms" position, hands free. Allows the users
to use his or her hands for other tasks without the weapon
getting in the way. Yet, in this position, the weapon can
easily and quickly be deployed into a firing position.

To place the weapon in the High Port Arms carrying position,
the center bar of the double eye is inserted into the metal
clip which is riveted onto the left side of the magazine well
on the MP5A2/A3/SD/N/SF submachine guns. On the MP5/10 and
MP5/40, this clip is not present on the magazine well. It is
sewn into the webbing of the ambidextrous multi-purpose
carrying sling but functions in the same manner as the metal
clip on the magazine well.

Once the double eye is inserted into the metal clip (some
force is required) the weapon will hang slightly higher and
closer to the chest of the operator.

To deploy the weapon into a firing position the shooter grasps
the weapon by the forearm and trigger group and, with a quick
aggressive thrust, shoves the weapon forward in the direction
of the muzzle. The double eye will detach from the metal
clip, allowing the weapon to be fired from the hip or
shoulder. To return the weapon to the High Port Arms carrying
position, reinsert the double eye into the metal clip.

Ill.# 82A - Hip Carry

Hip Carry - (See illustration # 82A) The hip carrying
position allows the weapon to be carried along the shooters
firing side or slightly across the his or her front.
Generally, the weapon should be controlled with the firing
hand when carried in this position. The double eye is not
inserted into the metal clip when in the hip carrying
position.

Ill.# 82B - Back Carry

Back Carry - (See illustration # 82B) The back carrying
position is an administrative carrying position used only when
the use of the weapon is not immediately required. This
carrying position is convenient for use to carry the weapon on
the back when not required, such as when climbing, running,
skiing or while using another weapon. The weapon can be
carried on the back muzzle up or muzzle down.

The weapon is placed in the back carrying position as follows.
Stand the weapon on a flat surface on the buttstock with it’s
muzzle pointing up or down. Grasp one length of the webbing
in one hand, the other in the other hand. Spread your hands
open to form a large loop. Place your arms into the loop as
though you were slipping into a coat, positioning the weapon
vertically on your back. Remove any twists in the webbing and
adjust the size of the loop by manipulating the length of the
free end of the webbing to make the weapon ride comfortably on
your back.

Ill.# 83A - Carrying Handle

Carrying Handle - (See illustration # 83A) This carrying
method can be used to administratively carry the weapon when
immediate use of the weapon is unnecessary. It can also be
used to easily carry more than one weapon or as a safe (non-
firing) carrying position off of the firing range.

Place the weapon in the carrying handle configuration in the
same manner as described above for the back carrying position.
However, in this case instead of slips your arms into the
loop, bring one length of the webbing under neath the weapon.
Join the two lengths together above the weapon. Adjust the
lengths of the webbing as required to place the weapon is a
stable horizontal carrying position, as pictured above in
illustration # 83A.

Firing Positions -

Shoulder and Hip Firing Positions - (See illustration 83B and
83C) Both hip and shoulder firing positions can be assumed
with the weapon slung as described earlier without any
restrictions. The unique design of the H&K multi-purpose
carrying slings secure the weapon to the shooter, allow hands
free carry of the weapon without restricting the aiming or
firing of the weapon.

Ill.# 83B - Hip Firing Position Ill.# 83C - Shoulder Firing Position

TRANSITIONING TO THE BACK-UP WEAPON

While wearing the MP5 submachine gun with the multi-purpose
carrying sling it is simple and fast to transition to the back-up
weapon in the event that the submachine gun malfunctions or runs

dry.

To transition to the back-up weapon follow the following steps.

Keep your eyes on the target and take cover if possible.

Remove your finger from the trigger and outside of the
trigger guard!

Drop the firing hand from the pistol grip of the
submachine gun and deploy the back-up weapon.

In conjunction with step number 3, use the non-firing
hand to depress the muzzle of the submachine gun
diagonally across the body in the direction opposite of
the firing hand.

Insure the weapon does not point at any portion of the
body or at other individuals.

Once the threat no longer remains, scan the area for any
additional threats. Once the area is clear, secure the
back-up weapon (to include thumb break, if applicable).

Recover the submachine gun and place it back into
operation.

COVERING THE SUSPECT

1. Keep the sights aligned on the lower extremities of
suspect so that you can see his hands. Keep both eyes
open to watch the suspect for any threatening actions and
to watch the surrounding area for additional threats.

2. Keep your fingers off of the trigger and outside of the
trigger guard!

3. The weapons safety/selector lever should be set on one of
the available firing modes, not on safe. A round should
be chambered.

WARNING
DO NOT place the finger inside the trigger guard or onto the

trigger until you must actually fire the weapon. DO NOT allow
fellow team members to pass between you and the suspect(s
while you are providing cover.

OPTIMUM FIRING POSITION

Your proficiency with the MP5, especially in burst or fully-
automatic firing modes, is greatly dependent on your ability to
master the necessary skills described below.

Contrary to popular belief, the muzzle of the MP5 in fully-
automatic fire does not rise. The weapon simply pushes straight
back into the shooters shoulder. However, the vertical and
horizontal rotation of the shooters body causes the muzzle of the

weapon to move upward and outward away from the initial point of
aim.

While the first round may strike the intended aiming point, the
recoil from each subsequent round pushes the shooters shoulder back
further and further and the sights farther away from the center of
the target. For example. A right handed firer’s rounds will
impact in a diagonal line from the initial point of aim in the
direction of 2 o’clock (high and right). A left handed shooters
rounds will climb high and to the left towards the 10 o’clock
position.

It is impossible to prevent this rearward push that starts this
rotation, regardless of how large or strong the firer may be. It
is a simple law of physics that cannot be overcome by simple brute
strength. This rearward push can only be countered through the use
of the proper techniques, as described below.

The three (3) key elements for controlling the MP5 or any fully-
automatic weapon are:

1. A stable position that allows the firer to resist
(counter) the rearward push of the weapon caused by

recoil.
2% Concentration on sight alignment and sight picture.
3 Conscious redirection of the weapon by making fine

adjustments with the body.

Stable Position (stance) -

The stance should be a natural position to hold, and a
position that is realistic to the tactics usually employed
with a submachine gun. Range training and operational use of
the weapon should be the same, so the shooter should train
what he or she will do on the day of an actual operation.

Ultimately there will be occasions when forward movement by
the firer will be required, either to close in on a suspect or
during clearing rooms in a building. During this movement the
necessity to open fire may become necessary. The stance
should be one that allows the firer to shoot while still on
the move and without having to stop. Therefore, the stance
should be logical and as close to a natural position as
possible to give the firer the best possible option when
confronted in a deadly situation. It should also be a
position that he or she will naturally assume instinctually.

The correct stance is also described as a "boxers stance",
denoting it’s aggressive, stable appearance when properly
assumed. To properly assume this position follow the steps
listed below, starting at the feet.

1. Position feet - Face square on to the target, feet
shoulder width apart. Drop the strongside foot
back about 6 inches (right foot for a right hand
shooter, left foot for a left hand shooter).

2. Flex the knees - Slightly bend your knees to allow
flexibility in the body (like shock absorbers).
Your weight should be evenly distributed on both

feet.
ae Position the head and body - Your hips and

shoulders should be square to the front with the
head upright. Tilting the head will result in a
loss of balance, especially in a darkened
environment.

4. Bend forward - Bend the upper portion of the body
forward from the rib cage to give the back a
slightly rounded appearance. (NEVER bend backward
from the waist or keep the back straight as this
will force the firer to go off balance and the
rounds he or she is firing could miss the target.)

- Be aggressive with your stance! Remember, you’/re a

boxer!
5s Position firing hand - Once you have assumed the

correct stance, pull the weapon firmly back into
the pocket of the shoulder with the firing hand via
the pistol grip. The firing hand pulls, and holds,
the weapon back into the body. (At this point the
grip of the firing hand on the weapon should be
able to fully support the weight of the weapon
without the assistance of the non-firing hand.
Check your ability to do just that.)

6. Position non-firing hand - The non-firing hand
should grasp the forearm/foregrip in a comfortable
position, keeping all parts of the hand well clear
of the muzzle. The non-firing hand is the control
hand used to make the minor adjustments in the
direction of the weapon prior to and during firing.
Therefore, only a moderate amount of pressure is
exerted on the forearm/foregrip of the weapon with
the non-firing hand. Just enough so that the
weapon never slips out of the palm during movement
or firing.

Ts Tuck in elbows - Pull the elbows in close to the
body to lock in the weapon and to prevent them from
getting knocked about during movement.

Concentration - Concentrate on the sights during firing,
constantly striving to maintain correct sight alignment and
sight picture as the weapon fires. Focus your concentration
on the front sight. Your secondary vision (often referred to
as peripheral vision) will allow you to "see" the rear sight
and target without focusing directly on them.

As the sights move out of alignment and drift away from the
initial aiming point, reacquire them and force them back into
the center of the target using fine adjustments of the arms
and body. Work to keep them there until the burst is
complete.

Conscious Redirection - Immediately resist the tendency of
the weapon to push your shoulder back during recoil. fThis
movement becomes very pronounced by the time the second or
third shot is fired.

Consciously redirect the sights to the initial aiming point on
the target through minor adjustments with the non-firing hand
and body. If you do not act to consciously redirect the
weapon at the aiming point the weapon will unconsciously
direct you away from the aiming point.

Control the weapon. Do not let the weapon control you!

As a drill using a "Clear" weapon, have someone slap the
muzzle of the weapon back into your shoulder with their palm.
When the position is correct, the muzzle of the weapon should
move very little to the rear (less than 1/2 inch) and should
immediately spring back into it’s original position. The body
should appear almost rigid to the observer.

As with any weapon, good steady-building trigger control is also
important to good machine gun shooting.

TACTICAL RELOAD

Tactical magazine changes are the same whether using a single
magazine or two magazines locked together using the optional dual
magazine clamps. In training, avoid dropping the magazines onto
hard surfaces that may damage them. Pad any hard surfaces with
carpet or cardboard to soften their impact. Specifically assigned
training magazines are also a good idea.

The steps for a good Tactical Reload for the H&K MP5 are as
follows.

NOTE 1: Remember that if the 30-round MP5 magazine has been
over filled with 31 rounds, you will not be able to
seat the magazine in the weapon with the bolt
forward.

NOTE 2: If the action of exchanging magazines is not
carried out with some degree of controlled
aggression, a magazine loaded with 30 rounds may
prove difficult to seat in the weapon with the bolt
forward.

11.

Transition to back up weapon, if necessary - Transition
to the back-up weapon if an immediate threat is present.

Stay alert- Keep your eyes open and scan the area for
any threats.

Signal your partner - Notify your partner, in code, that
you must reload.

Seek cover - Seek cover if it is immediately available
or drop to one knee if no cover is available. (Remember,
cover is protection against incoming fire, concealment
only hides you from sight and affords no protection from
incoming fire.)

Tilt, rack and lock - Tilt the ejection port towards the
ground and rack the action back and forth one or more
times. Watch for a live round or empty cases to be
expelled from the weapon. Don’t pick up the live round,
leave it!

Lock the cocking handle back into the indent to hold the
bolt to the rear.

Secure _a loaded magazine - Locate and secure a loaded

magazine before removing the empty one from the
weapon.

Remove empty magazine - Depress the magazine release
lever and remove the empty magazine. Let it drop to the
floor.

Load the full magazine - Insert a fresh magazine or
reposition the second magazine on the dual magazine
arrangement into the magazine well of the weapon.

Tug on the magazine to make sure that it is securely
engaged.

Release the bolt - Slap the cocking handle forward (or
depress the bolt catch release lever on the MP5/10 or
MP5/40) to chamber a new round. DO NOT ride the bolt
forward.

Signal your partner - Notify your partner, in code, that
you have finished your reload.

Scan and continue - Scan the area and continue your
mission.

STORAGE OF THE WEAPON

1. Store the weapon clean and lubricated.
2. Store the weapon without a round in the chamber.
cies Store the weapon with the cocking lever forward and the hammer

down (at rest).

4. After no more than twelve (12) months unload all loaded
magazines and replace the ammunition with fresh ammunition.

5. Clean and lubricate the weapon and magazines every twelve (12)
months while in storage.

6. Store the weapon is a clean, dry environment with regulated
temperature controls.

USE OF OPTIONAL ACCESSORIES

Only the more commonly used accessories available from H&K are
covered in this section. Refer any questions you may have about
accessories not covered here directly to H&K or to the after market
supplier of that item. H&K accepts no responsibility for injuries
or damage to the weapon that may result in the incorrect use of the
H&K-produced accessories or for those accessories not produced or
sold by Heckler & Koch.

Multi-purpose Carrying Slings - See page 75 for the use and

attachment of the standard and ambidextrous multi-purpose carrying
slings available for the MP5 submachine gun.

Ill.# 90A - Multi-purpose Carrying Sling (standard pictured)

Dual Magazine Clamp -

Magazine loader -

Ill.# 91A - Dual Magazine Clamp (9mm pictured)

Place the locking lever in it’s unlocked position,
perpendicular to the clamp itself.

Insert two magazines into the clamp, both facing up and in the
same direction.

Position the clamp below the mid-point of the magazines with
the bottom of the clamp just above the lowest round count hole
located in the rear of the magazine housing.

Depress the locking lever in either direction to secure the
magazines in the clamp.

Check the positioning of the magazines in the clamp by
insuring that each magazine can be fully inserted and locked
into place in the magazine well of the weapon.

Remove the magazine from the clamp during cleaning.

Ill.# 91B - Magazine Loader

Place the magazine loader onto the top of the magazims witit
the hole positioned along the rear side of the magazine.

Hold the magazine in your non-firing hand. Using your non-
firing hand, grasp the magazine loader in your four fingers
and place your thumb on top of the loader. Place the base of
the magazine against a fixed surface or your body.

Insert one round into the loader through the hole in the rear,
projectile forward.

Fully depress the loader with the non-firing thumb to insert
the round into the magazine.

Magazine Unloader -

Repeat steps 3 and 4 above until the magazine has been filled.
DO NOT fill the magazine with more than the prescribed number
of rounds, i.e. 30 rounds in a 30-round magazine, 15 ina 15-
round magazine.

Remove the magazine loader from the magazine once the magazine
has been filled.

Il.# 92A- Magazine Unloader

Press the unloader down onto the top of the loaded magazine
with the hole positioned along the front side of the magazine.
Insure that the locking lever on the unloader engages in the
slot on the magazine housing. Point the hole in the unloader
down.

With your palm, rock the serrated lever, located on the top of
the unloader, to the left and right. A round should spill out
of the unloader with each movement of the serrated lever.
Continue this action until the magazine is empty.

Once the magazine is empty, lift the locking lever away from

the magazine housing and lift the unloader off of the top of
the magazine.

Muzzle Mounted Accessories -

CAUTION

Insure that all of the muzzle mounted accessories are properly
attached to the weapon before use. Periodically check the
accessories for secure attachment throughout use to insure
that they remain securely attached to the weapon. Beware that
these accessories may be hot as a result of firing. Failure
to properly attach the muzzle mounted accessories and to
recheck that attachment periodically may result in injury to
the operator or bystanders, and/or damage to the accessory
and/or weapon.

NOTE: All muzzle mounted attachments listed below must be
removed, cleaned and lubricated each time the
weapon is cleaned or after firing 1,000 rounds.
Failure to do so will result in the creation of a
carbon fouling bond that may make it difficult to
remove the accessory from the muzzle of the weapon.

Sound Suppressor - See page 62 for use and attachment of the
sound suppressor.

Flash Hider - There is a detachable flash hider for the 9mm
MP5 and a different model for the 10mm/.40 S&W MP5’s. The
difference is the diameter of the bore of the flash hider to
correspond to the diameter of the projectile. The 9mm flash
hider will not fit on the 10mm/.40 S&W MP5.

Ill.# 93A - Flash Hider

1. Prior to attaching the flash hider, insure that the flash
hider and the muzzle of the weapon with it’s 3 lugs are
clean and lightly lubricated.

23 Disengage the locking lever by pressing it against it’s
spring tension along it’s length. Use your finger nail
or a small flat object to depress and lift the locking
lever away from the body of the flash hider. The flash
hider is now ready to be installed on the weapon.

3. Place the flash hider fully over the muzzle of the weapon

and it’s 3 lugs with the locking lever positioned away
from the bottom of the flash hider.

4. Reengage the locking lever until it is retained by spring
pressure and the notch, located at the front end of the
locking lever, is securely engaged on the engagement pin
found in the slot in the body of the flash hider.

You may find it necessary to slightly rotate the flash
hider to fully engage the locking lever.

5. Check for secure attachment of the flash hider by pulling
forward and twisting the flash hider. Check again for
the complete engagement of the locking lever.

Grenade Launcher - The detachable grenade launcher is
attached to and removed from the MP5 in the same manner as the
flash hider described above. The grenade launcher is used to
launch rifle-style grenades with an inside diameter of 22 mm
using a special grenade launching cartridge.

Ill.# 94A - Grenade Launcher Lo aeane Lever
Blank Firing Attachment (adaptor) - Often referred to as the
"BFA", the blank firing attachment for the MP5 is attached and
removed from the weapon in the same manner as the flash hider
described above. The BFA is marked with a red painted band
denoting it is for use with blank ammunition only. The BFA
will work on all 9mm models of the MP5 submachine gun that
have the 3-lug barrel, which excludes the MP5K and MP5KA1.

Tll.# 94B - Blank Firing Attachment

WARNINGS
1. NEVER FIRE THE MP5 WITH LIVE AMMUNITION WITH THE BLANK
FIRING ATTACHMENT IN PLACE.
2. ALWAYS INSURE THAT BLANK AND LIVE AMMUNITION IS NOT MIXED
IN THE MAGAZINE, ESPECIALLY WHEN THE BFA IS ATTACHED TO
THE WEAPON.

3. INSURE AT ALL TIMES THAT THE BFA I8 SECURELY ATTACHED TO
THE WEAPON.

4. DO NOT ATTEMPT TO MODIFY THE BFA IN ANY WAY.

The recommended blank ammunition for use in the 9mm MP5’s in
conjunction with the H&K blank firing attachment is the
Dynamit Nobel "Plastic Manoeuvre" cartridge. This special
round, designed for use in the MP5 submachine gun, contains a
black pre-fragmented "projectile" that insures optimum feeding
in automatic weapons. When fired this black plastic tip opens
up and releases the propellent gases in the bore but stays
securely attached to the cartridge case. These blank
cartridges are loaded and fired in the same manner as live
rounds and allow the MP5 to be fired in all modes of fire.

The Dynamit Nobel Plastic Manoeuvre round provides sufficient
gaS pressure and recoil impulse to reliably operate the
roller-locked bolt employed in the MP5 without modification to
the weapon or the BFA. Other types of blank rounds available
may not provide sufficient recoil impulse to reliably work the
bolt of the MP5, though they may function well in other types
of 9mm weapons that are not roller-locked.

The Dynamit Nobel Plastic Manoeuvre (blank) ammunition is
manufactured in Germany but is available in the U.S. through
their U.S. office located in Northvane, New Jersey. Their
telephone number is (201) 767-1995.

Detachable Scope Mounts - There are various versions of the unique
H&K quick-detachable scope mounts. These mounts can be used
to affix all manner of targeting devices (lasers, lights,
scopes, etc.) to the all models and variants of the MP5. They
provide the MP5 user with the ability to zero one or more
types of targeting devices to a single weapon. The user can
then select the appropriate targeting device at any moment for
the mission at hand with the assurance that that device will
still be zeroed to the weapon once reattached. Two spring
actuated bolts, positioned along the base of the mount, exert
pressure on the receiver to hold the mount in the same
position at all times. All versions of the quick-detachable
scope mounts provide a tunnel through the scope mount so that
the firer can use the iron sights while the scope mount is
attached to the top of the receiver.

ere

———— _— — Release Lever (protrudes from right side)

\"q Wy ay

Locking*Tabs

Foe

“Locking Lever

Ill.# 95A - Rail-type scope mount without 30mm rings

To_ attach the scope mounts, follow the procedure as listed

below.
1. CLEAR THE WEAPON!
2. Locate the arrow on the base of the mount that points in

the direction of projectile travel. Face the mount with
that arrow pointing away from you with the mount in an
upright position.

3% Locate the release lever on the right side of the mount.
It is a paddle shaped lever with serrations that
protrudes horizontally from the right ride of the mount.
Depress and hold the release lever down.

4. Locate the locking lever on the left side of the mount.
It is a beaver tail shaped lever that lays in a vertical
position along the left side of the mount. Pull the
locking lever away from the mount and fully depress it as
you hold down on the release lever. In doing so the
locking tabs attached to the locking lever and located on
the bottom of the mount are withdrawn.

At this point the mount can be positioned on the weapon.

5. Locate the scope mounting platform located on the top of
the receiver about two inches forward of the rear sight
assembly. Set the mount onto the receiver by tilting
into place from right to left with the rear bridge of the
mount positioned in the scope mounting platform.

6. Holding the mount in place, pull down on the locking
lever until you hear a "click" (the sound of the release
lever snapping into the locking lever). Rotate the

locking lever back into an upright stored position.
To remove the scope mounts, grasp the targeting device and/or
mount and depress the release lever. The locking tabs will
disengage from the receiver and the mount can now be removed
from the weapon.

Sight Adjustment Tool - See page 70 for the use of the sight
adjustment tool.

Buttcap for MP5A2/A3 - This plastic buttcap replaces the fixed or

retractable buttstocks on the 9mm MP5A2/A3/N/SF when the
buttstock is not required. The buttcap has a sling swivel
attached to it’s back side for use with a carrying sling or
rig.

To attach the buttcap to the weapon first CLEAR THE WEAPON!
Slap the cocking lever and bolt forward. Remove the buttstock
from the weapon. Align the rails of the buttcap with the
grooves in the left and right sides of the receiver. Firmly
press the buttcap into place on the receiver and insert the
locking pin to secure it. These caps fit very tightly on the
weapon so some controlled force may be necessary to mount the
buttcap.

Remove the buttcap by pulling it from the receiver after the
locking pin has been removed.

Tactical Forearm with Light ("Sure-Fire") - The standard forearm

All

of the MP5A2/A3/N/SF and the MP5/10 and MP5/40 can be replaced
with a molded forearm assembly that has a flashlight built
into it. The current design of this forearm does not allow it
to be used on the MP5-N with the screw-on sound suppressor
installed. Other models of the Sure-Fire Tactical Light are
available to attach to all models and variants of the MP5
submachine gun.

To attach the Tactical Forearm with Light, first CLEAR THE
WEAPON! Next, remove the locking pin from the standard
forearm and remove the standard forearm. Install the tactical
Forearm with Light in the same manner as is done with the
standard forearm.

It may be necessary to slightly spread the front of the
forearm using a screwdriver, as these accessories are designed
to fit snugly on the weapon. Align the pin hole and install
the locking pin. If applicable, attach the second remote
pressure switch to the pistol grip of the weapon in accordance
with the instructions provided with the accessory.

other accessories for the MP5 submachine guns should be

installed in accordance with the instructions provided with that
particular iten. If no instructions are received, contact the
manufacturer for guidance.

TROUBLE SHOOTING

Maintaining detailed records, in the form of a Weapon Record Book,
will help the unit armorer or H&K diagnose problems that may occur
in your MP5 submachine gun. This book should include a running
tally of the total rounds fired through the weapon, any problems
experienced, all work performed to include parts that are replaced,
dates, and initials of the person responsible for the action
listed. Such books are available from H&K under ID# 700587.
Records can also be kept on individual weapons in the back of the
operators manual.

Maintaining this type of record will eventually provide the user
with a history of parts failures that can be used to predict future
deficiencies before they occur! In this way the operator can
perform preventive maintenance instead of corrective maintenance.

These books should be available to the armorer and operator at all
times so that the data may be entered as it is generated.

However, even with detailed record keeping problems may still
occur, even in a high-quality weapon like the MP5. If they do,
first eliminate these general causes that are often to blame.

1. Operator error (incorrect use or maintenance)

2. Ammunition (bad lot, poor quality or condition, wrong type)

3 Magazines (damaged or fouled)
4. Fouled or poorly lubricated weapon.
5a Weapon is assembled incorrectly or with wrong components.

If after investigating these general areas the problems still
occur, refer to the more detailed common stoppages listed below.

Weapons may be sent to HK-Inc. in Sterling for repair, rebarreling
or refinishing in house. Contact your customer service
representative or H&K’s Repair Department BEFORE sending your MP5
in for service! Please send along the magazines used with the
weapon.

Rebarreling an MP5 cost @ $250 - $300 and can be done at HK-Inc. in
two weeks or less for military or law enforcement customers.
Unless the barrel is damaged or excessively worn, H&K generally
would not recommend having a barrel replaced that has less than
30,000 rounds fired through it. Refinishing can also be performed
by HK-Inc. and takes @ 4-6 weeks. Call H&K’s Repair Department for
current pricing and turn-around time for such work.

Complete reconditioning (inspection, rebarreling, refinishing,
replacement of worn parts, etc.) can be done on the same receiver
up to three times for about one half of the cost of a new weapon.
This procedure is done at the HK-GmbH factory in Germany and takes
about 4-8 weeks once the import and export permits are in place.
Coordinate this action with your customer service representative at
H&K before sending in your weapon(s). Reconditioning is a great
way to extend the service life of even the most used MP5 for @ one
half of the cost of a new weapon.

Trouble Shooting the more common MP5 stoppages

SYMPTOM CAUSE REMEDY
* Cartridge cases Worn extractor Replace extractor
will not eject spring. spring. Clean and
from weapon. lube under extractor
first.
Dirty chamber Clean and lubricate

Defective magazine Replace magazine
(split seam or bent housing
feed lips)

Defective ejector Replace ejector
or ejector spring and/or ejector spring

Ammunition in- Use different
consistency/quality ammunition or lot

Wrong locking piece Install correct

installed locking piece
* Locking rollers Broken locking Replace rollers
fall from bolt roller holder and install new
head locking roller holder
NOTE: In an emergency when spare parts are not readily

available, reinstall the locking rollers into the bolt
head and without the holder, insuring that all parts of
the broken holder are removed from the weapon. The
weapon will function normally without the holder, though
the holder must replaced at the first opportunity to
prevent the locking rollers from being lost and the
weapon from being fired without them in place. The
rollers can only come out of the bolt and thus out of the
weapon once the bolt group is removed from the receiver.

* Bolt will not Obstruction in Remove obstruction,

lock closed chamber clean and lube chamber
Improper loading Use correct
procedure procedure
Dent in receiver Return to unit
or cocking lever armorer or H&K
housing for repair
* Sound suppressor Carbon build-up Remove and clean

of MP5SD will not between sound sup- weapon as described
unscrew or come pressor and barrel. on page 53
off weapon Too many rounds

between cleaning

using MP5SD

Barrel Cleaning De-

vice (ID# 225376)

* Recoil spring Worn nylon guide Replace nylon guide
guide rod falls rings. Recoil rings and retrain
off bolt group spring guide operator not to
rod removed un- remove the recoil
necessarily during spring guide rod
operator dis- from the bolt group
assembly; or exces-
sive use
NOTE: In the field the recoil spring guide rod can be reversed

and the weapon used in a normal fashion until the nylon
guide rings can be replaced by an armorer.

* Rubber buffer Overfunction of Install "HI" impulse
on MP5/10 and bolt group from use locking piece.
MP5/40 retract- of HI impulse an- Replace rubber buffer.
able stock is munition in a weapon

cracked and/or assembled with a LO
shows signs of impulse locking piece.
deep impressions

from the impact of

the bolt carrier.

100

* MP5K-PDW used with Worn extractor Install 80 degree

optional sound spring caused by locking piece
suppressor. Fail- overfunction of and new extractor
ures to feed and/or bolt group when spring for

eject. Excessively using a sound regular use with
high rate of suppressor sound suppressor

fire (@ 1,200 rpm)

* Ambidextrous trigger Damaged trigger Remove burr
group safety/selec- housing on opening in opening in
tor lever will not on right side of trigger group
rotate into place trigger group. housing using
during reassembly. Burr at 7:00 pos- jewelers file.

ition in metal trig-
ger mechanism housing
from being forced
during reassembly.

NOTE: The remedy for this problem should only be performed by
a qualified H&K armorer once the trigger mechanism has
been removed from the pistol grip.

* Weapon doubles Broken or missing Install new
(fires more firing pin spring firing pin
than one shot per ‘spring

trigger pull when
set on semiautomatic
firing mode)

* Empty cases will Excessive chamber Discontinue using
not extract from pressure of ammuni- that type of
chamber tion characterized ammunition

by pronounced flute
marks along length
of cartridge case

Fouled chamber Clean and lube
chamber

Damaged or missing Replace with

extractor and/or new extractor

extractor spring and/or extractor
spring

101

* Cocking handle Lack of lubrication Lubricate detente

is difficult to on detente located

pull rearward in front end of
cocking lever
support

102

PARTS LIST

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #

ASSEMBLY GROUPS

1 1 Receiver w/ barrel, cocking 206233
lever and sights (MP5A2/A3)
1 2 Bolt group, compl. (MP5A2/A3/N) 201502
* Bolt group, compl. (MP5K/KN) 206414
1 3 Grip w/ trigger mechanism and 206229
fire selector, SEF (MP5A2/A3/SD)
* Grip w/ trigger mechanism and 206542
selector, SEF (MP5K)
1 4 Buttstock, fixed 205586
1 5 Buttstock, retractable (9mm) 225558
* Buttstock, retractable 214278

(10mm/.40 S&W)
Note: can also be used on 9mm MP5’s

* Buttstock, folding (MPS5KPDW) 701212
6 Forearm, Slimline (MP5A2/A3) 224007
2 6.1 Forearm, wide (standard for 206657
MP5A2/A3/N/SF)
5 3 Handguard (MP5SD) 206472
3 2 Handgrip (MP5K/KN/PDW) 206421
a 7 Magazine, 30 round (9mm) 206349
* Magazine, 30 round (10mm/.40 S&W) 205131
* Magazine, 15 round (9mm) 206477
* Multi-purpose sling 205506
(MP5A2/A3/SD/N/SF)
* Ambidextrous carrying sling 205213
(MP5/10 & MP5/40)
Note: requires mounting pins
#700148 & #700154
* Leather carrying sling 200574
5 2 Sound suppressor, aluminum 928878
(MP5SD)
* Sound suppressor, stainless 700135
steel (MP5SD-N)
* Sound suppressor, stainless 700134
steel (MP5N/KN/PDW)
* Sound suppressor (MP5/10 & 701600
MP5/40)
* Flash hider (MP5SF) 221127

(also fits MP5A2/A3/N/K-N/PDW)

103

PARTS LIST (cont.)

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #
BARREL WITH RECEIVER
Receiver w/ barrel, cocking lever 206234
housing and front sight holder
(MP5A2/A3)
Receiver w/ barrel, cocking lever 225219
housing and front sight holder
(MP5N)
Receiver w/ barrel, cocking lever 206722
housing and front sight holder
(MP5SD)
Receiver w/ barrel, cocking lever 206541
housing and front sight holder
(MP5K)
Receiver w/ barrel, cocking lever 205098
housing and front sight holder
(MP5/10)
Receiver w/ barrel, cocking lever 205272
housing and front sight holder
(MP5/40)
2 ts Barrel (MP5A2/A3) 201590
* Barrel (MP5SD) 205920
* Barrel (MP5K) 206420
* Barrel w/ front sight holder, 214426
thread cap and eyebolt, black
(MP5N)
* Barrel w/ front sight holder, 214428
thread cap and eyebolt, black
(MPSEN)
* Barrel w/ front sight holder, 214142
thread cap and eyebolt, black
(MP5/10)
* Barrel w/ front sight holder, 214422
thread cap and eyebolt, black
(MP5/40)
2 1.3 Barrel pin, 5.Omm (stnd) 200437
Barrel pin, 5.015mm 201262
Barrel pin, 5.03mm 225161
Barrel pin, blank, 5.1mm 922019
2 1.4 Cocking lever housing, compl. 201573
2 1.5 Holding clip with bush 200418
2 1.6 Front sight holder w/ front sight 201561
2 1.7 Front sight 200415
* Front sight w/ tritium dot 700126
and ring (MP5N/KN/SDN/PDW)
2 1.8 Clamping sleeve 922609
2 1.9 Eyebolt 201241

104

PARTS LIST (cont.)

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #
BARREL WITH RECEIVER (cont-)
2 1.10 Cocking lever support, compl. 205906
(MP5A2/A3/SD)
* Cocking lever support, compl. 206423
(MP5K)
2 1.11 Cocking lever, complete 205905
(MP5A2/A3/SD/N/SF)
2 13:2 Clamping sleeve 922609
2 1.13 Catch bolt 205910
2 1.14 Spring for catch bolt 202495
2 1,15 Cap, compl., cocking tube 200385
(aluminum)
T2415 Cap, compl., cocking tube 206497
(steel)
2 1.16 Cartridge case deflector 201526
2 1.17 Rivet for cartridge case deflector 201527
2 1.18 Adjusting screw 200384
2 1.19 Ball spring 200383
2 1.20 Ball (3mm) 929897
2 1.21 Catch bolt 200381
2 1.22 Spring for catch bolt 200382
2 1.23 Rear sight support 200375
2 1.24 Rear sight cylinder 201542
(MP5A2/A3/SD/N/MP5/10 & MP5/40)
* Rear sight cylinder (MP5K/KN/PDW) 206415
* Rear sight, compl. 201515
(MP5A2/A3/SD/MP5/10 & MP5/40)
* Rear sight, compl. (MP5K/KN/PDW) 206407
* Spare parts set for rotary 200988
rear sight
2 1.25 Washer 200371
2 1.26 Toothed lock washer 922617
2 1.27 Clamping screw 200372
2 1.28 Magazine catch, compl. 206228
2 1.29 Compression spring for magazine 200393
catch (MP5A2/A3/SD/N/K)
* Compression spring for magazine 205100
catch (MP5/10 & MP5/40)
2 1.30 Contact piece for magazine catch 201517
2 1.31 Push button for magazine catch 200396
2 1.32 Clamping sleeve 922608
2 1.33 Magazine release lever, compl. 201513
(MP5A2/A3/SD/N/K)
* Magazine release lever 205099
(MP5/10 & MP5/40)
2 1.34 Bushing for mag. release lever 200397

105

PARTS LIST (cont.)
EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #

BARREL WITH RECEIVER (cont. )

4 11 Axle, bolt catch, 2 X 8mm 205101
(MP5/10 & MP5/40)
* Clamping sleeve, 2 X 8 mm 980717
4 13 Bolt catch lever 205102
(MP5/10 & MP5/40)
4 14 Clamping sleeve, 2 X 6mm 928574
(MP5/10 & MP5/40)
4 15 Elbow spring (MP5/10 & MP5/40) 205103
* Cocking lever support 205310
(MP5/10 & MP5/40)
* Compression spring 205314
(MP5/10 & MP5/40)
* Cocking lever 205308
(MP5/10 & MP5/40)
* Clamping sleeve, 4 X 12mm 922609
(MP5/10 & MPS/40)
2 16 Protective cap for muzzle 225217
threads, 9mm (MP5N/KN/PDW)
2 16 Protective cap for muzzle 205283

threads, 10mm/.40 S&W
(MP5/10 & MP5/40)

5 4 Seal ring, rubber, for 206469
MP5SD sound suppressor

BOLT GROUP
2 264 Carrier, bolt head 201594
(MP5A2/A3/SD/N/SF)
* Carrier, bolt head (MP5K/KN) 206413
* Carrier, bolt head 205117
(MP5/10 & MP5/40)
2 2.2 Stop pin 201597
2 2.3 Clamping sleeve 2X5 205597
2 2.4 Bolt head, incompl. w/o 201609
rollers, extractor, etc.
(MP5A2/A3/K/SD/N/SF)
* Bolt head, compl. w/ all 201595
parts (MP5A2/A3/K/SD/N/SF)
* Bolt head, new for Action 3 205489

ammo, compl. (uses wire roller
holder #221125)(MP5A2/A3/K/SD/N/SF)
106

PARTS LIST (cont.)
EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #

BOLT GROUP (cont.)

* Bolt head, compl. w/ all 205121
parts (MP5/10 & MP5/40)
2 2.5 Extractor (9mm) 201610
* Extractor (10mm/.40 S&W) 205123
2 2.6 Spring, extractor 206645
2 207 Roller, locking, 7.96mm 200007
2 2.7 Roller, locking, 7.98mm 222232
2 2.7 Roller, locking, 8.00Omm 200446
(standard size)
2 27 Roller, locking, 8.02mm 200447
2 2.7 Roller, locking, 8.04mm 200448
* Roller, locking (MP5/10 & MP5/40) 205124
2 2.8 Holder for locking rollers, 200449
Plate (for bolt heads #201609 &
201595)
* Holder for locking rollers, 221125
wire (for Action 3 bolt head
#205489 and for MP5/10 & MP5/40
bolt head #205121)
2 2.9 Clamping sleeve 200450
2 2.10 Locking piece (MP5A2/A3/N/SF) 201599
2 2.10 Locking piece (MP5K/KN & PDW 224786
w/o sound suppressor)
2 2.10 Locking piece, 80°, for MP5K~PDW 214292
w/ sound suppressor
2 2.10 Locking piece (MP5SD) 205929
2 2.10 Locking piece, HI impulse 60° 205282
(MP5/10 & MP5/40)
2 2.10 Locking piece, LO impulse 90° 205189
(MP5/10 & MP5/40)
2 Dead Spring, firing pin 201601
2 212 Firing pin 201600
* Recoil spring assembly, compl. 205596
(MP5A2/A3/SD/N/SF/MP5/10 & MP5/40)
* Recoil spring assembly, 206400
compl. (MP5K/KN)
2 2.13 Recoil spring (MP5A2/A3/SD/N/SF) 201603
* Recoil spring (MP5K/KN) 206391
2 2.14 Recoil spring guide rod 201604
(MP5A2/A3/SD/N/SF)
* Recoil spring guide rod 206401
(MP5K/KN)
2 2.15 Guide ring 200524
2 2.16 Stop pin for recoil spring 205603
2 2.17 Rivet (2 each) 200526

107

PARTS LIST (cont.)

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #

GRIP WITH TRIGGER AND SAFETY MECHANISM

(SEF)

2 3.1 Grip only (MP5A2/A3&SD) 201628

* Trigger mechanism, compl.w/o grip 206235
2 353 Locking pin, compl. 200459
2 3.4 Fire selector lever, compl. 221202

Ld
TRIGGER MECHANISM °
(SEF)

2 3.2.1 Trigger housing 205657
2 3.2.2 Hammer w/pressure shank, compl. 205569
2 3.2.5 Hammer spring 201638
2 3.2.6 Hammer axle 200494
2 3.2.7 Axle for trigger and catch 200482
2 3.2.8 Trigger, complete 205629
2 3.2.9 Sear 200490
2 3.2.10 Trigger bolt 200492
2 3.2.11 Compression spring to sear 200493
2 3.2.12 Clamping sleeve 200450
2 3.2.13 Elbow spring for trigger 200483
2 3.2.14 Catch with roller 200871
2 3.2.15 Elbow spring w/roller 200505
2 3.2.16 Distance sleeve for catch 200504
2 3.2.17 Ejector axle 200480
2 Bv2s LS Spring ring for ejector axle 200481
2 oe Brae | Ejector (9mm) 201639

* Ejector (10mm/.40 S&W) 205128
2 3e2020 Ejector spring 200478
2 3.2.21 Release lever, complete 202054

108

PARTS LIST (cont.)

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #

AMBIDEXTROUS TRIGGER GROUP
WITH TRIGGER, SAFETY MECHANISM
AND TRIGGER HOUSING

6 1 Trigger Group, compl. 225188
(MP5N & SDN)
* Trigger Group, compl. 225218
(MP5KN)
6 2 Grip only (MP5N & SDN) 225204
* Grip only (MP5KN) 225230
* Grip only (MP5SF) 225523
6 3 Axle, safety (left) 7 225211
* Axle, safety, left (MP5SF) 225526
6 4 Switch, safety (right) 225089
6 5 Trigger mechanism, compl. 225205
* Trigger mechanism, compl. (MP5SF) 225524
* Trigger mechanism, compl. 205299
(MP5/10 & MP5/40)
6 6 Hammer w/pressure shank 205569
6 8 Trigger, compl. 225209
* Trigger, compl. (MP5SF) 225525
6 12 Sear, compl. 200489
6 14 Bushing 225206
6 15 Trigger housing (bare) 225207
* Trigger housing, bare (MP5SF) 225530
6 16 Elbow spring w/rollers 200505
* Elbow spring w/ rollers (MP5SF) 202545
6 17 Axle, ejector 200479
6 19 Ejector (9mm) 201639
* Ejector (10mm/.40 S&W) 205128
6 20 Spring, ejector 200478
6 21 Distance sleeve (for elbow 200504
spring w/rollers/catch)
* Distance sleeve (MP5SF) 221022
6 23 Axle, hammer 200494
6 24 Spring, hammer 201638
6 25 Axle for trigger & catch 200482
6 26 Release lever 202054
6 28 Catch w/roller 200871
6 29 Axle, catch lever 224423
6 30 Axle, catch lever spring 224424
6 31 Catch, lever 224425
6 32 Spring, catch lever 224426
6 33 Spring, trigger 200483
6 34 Holder for thread cap, compl. 205483

(MPSN/KN/PDW/MP5/10 & MP5/40)
109

PARTS LIST (cont.)

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #

3-ROUND BURST TRIGGER GROUP
WITH TRIGGER, SAFETY MECHANISM
AND TRIGGER HOUSING

7 1 Trigger group, compl, fits 225002
MPS5A2/A3/N/SD
* Trigger group, compl, fits 224818
MP5K/KA1/KN
7 2 Grip only (MP5A2/A3/N/SD) 225003
* Grip only (MP5K/KA1/KN) 224819
7 3 Axle, safety (left) 225087
7 4 Switch, safety (right) 225089
7 5 Trigger mechanism, compl, 224811
(MP5A2/A3/N/SD/K/KA1/KN)
7 6 Hammer w/ pressure shank, compl 224813
7 7 Shifter rod 224429
7 8 Trigger 224436
7 9 Sear release latch 224435
7 10 Elbow spring for sear latch 224434
7 11 Axle for sear release latch 224433
7 12 Sear, compl 224439
r 13 Counting wheel 224441
7 14 Stop latch 224445
7 15 Trigger housing (bare) 224448
7 16 Elbow spring w/ roller — 200505
7 17 Ejector axle, compl 200479
7 18 Eccentric bushing 224418
7 19 Ejector 201639
7 20 Spring for ejector 200478
7 21 Distance sleeve for catch 200504
7 22 Disk (Deleted) 224419
7 23 Hammer axle 200494
7 24 Hammer spring 201638
7 25 Axle for trigger and catch 200482
7 26 Compression spring for shifter 224420
rod
7 27 Compression spring rod 224421
7 28 Catch 225107
7 29 Axle for catch lever 224423
7 30 Axle for stop latch 224424
7 31 Catch lever 224425
7 32 Elbow spring for stop latch 224426
7 33 Elbow spring for trigger 224480
7 34 Hammer spring bushing 224996
7 35 Catch release lever 225111

110

PARTS LIST (cont.)

EXPLODED ITEM# ITEM DESCRIPTION PART #

2 4.1 Buttstock, compl. 205586
2 4.2 Back plate (MP5A2/A3/SD) 205590
2 4.3 Locking pin, compl. 200520
* Buttcap, compl. (MP5K/KN) 206409
3 3 Buttcap, incompl. 206416
w/o swivel or circlip (MP5K/N)
3 4 Swivel with bushing 205935
ce) 5 Circlip, 4.0mm 971748
BUTTSTOCK, RETRACTABLE
2 Sel Buffer 206689
2 5.2 Back plate 202038
2 5.3 Compression spring 200985
2 5.4 Compression bolt 200984
2 5.5 Buffer screw 200983
2 5.6 Clamping sleeve 200959
2 5.7 Ratchet 200951
2 5.8 Protective cover w/plug 205839
2 5.9 Clamping lever 205838
2 5.10 Spring ring w/catch 200952
2 5.11 Retractable buttstock, 201183
end only (see diagram)
2 5.12 Circlip 922622
2 5.13 Locking pin, compl. 200520
HANDGUARD
1 6 Forearm, slimline(MP5A2/A3) 224007
2 6.1 Forearm, wide (standard for 206657
MP5A2/A3/N/SF/MP5/10 & MP5/40)
5 3 Handguard (MPS5SD) 206472
3 2 Vertical foregrip (MP5K/KN/PDW) 206421
2 6.2 Locking pin, compl. 200459

111

PARTS LIST (cont.)

EXPLODED ITEM # ITEM DESCRIPTION PART #
DIAGRAM #
MAGAZINE
2 Te Magazine housing, 30rd. (9mm) 206305
* Magazine housing, 30rd. 205135
(10mm & .40 S&W)
2 sy’ Follower (9mm) 206675
* Follower (10mm & .40 S&W) 205132
2 Ae | Follower spring (9mm) 206677
* Follower spring (10mm & .40 S&W) 205133
2 7.4 Locking plate, compl. 206680
2 7.5 Magazine floor plate (9mm) 201654
* Magazine floor plate 205134
(10mm & .40 S&W)
* Magazine housing, 15rd. 206478
* Follower spring 206679

MULTI-PURPOSE CARRYING SLING

2 * Multi-purpose carrying sling 205506
(MP5A2/A3/SD/N/SF)
(includes part 8.2 to 8.5)
* Ambidextrous carrying sling 205213
(requires sling pins listed below)
* Leather carrying sling 200574
(includes part 8.2 to 8.5)
2 8.2 Carbine hook, compl. 200581
2 8.3 Double eye 205511
2 8.4 Buckle 201730
2 8.5 Hook 200217
* Sling pin, ambidextrous, large 700148

for buttstock, compl.
(with locking knob)
* Sling pin, ambidextrous, small 700154
for forearm, compl.
(with locking knob)

* Spare locking knob for sling pin 205119
(#700148 & 700154)
* Spare rubber O-ring for sling pin 982311

(#700148 & 700154)

OPTIONAL ITEM
* Spare retaining spring for 224650
holder for thread cap (#205483)
112

EXPLODED DIAGRAM

EXPLODED DIAGRAM MS ,
(cont.)

Exploded Diagram # 4 Exploded Diagram # 5 - MP5SD
MP5/10 and MP5/40

Exploded Diagram # 6

Ambidextrous Trigger Group Exploded Diagram # 7

Burst Trigger Group

WEAPON SERVICE RECORD

Weapon Type: Serial Number:
Number Cumula-
of tive Total Maintenance
Rounds of Rounds Users Performed/

Fired Name Remarks

Draft 5/20/93

115

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